Revert "Remove obsolete Group tag"

We maintain an upstream specfile of NetworkManager [1] that shall be suitable
for all Fedora/RHEL releases. As such, there are still releases for
which we want to keep the group tag.

Revert the patch, so that the difference between Fedora's and upstream's
specfile is minimized.

[1] https://cgit.freedesktop.org/NetworkManager/NetworkManager/tree/contrib/fedora/rpm/NetworkManager.spec?id=96be30cbcc59494d45e3b2f3bd605e00050674ed

This reverts commit 62adcbc888.

NetworkManager.spec

@@ -101,6 +101,7 @@ Summary: Network connection manager and user applications
 Epoch: %{epoch_version}
 Version: %{rpm_version}
 Release: %{release_version}%{?snap}%{?dist}
+Group: System Environment/Base
 License: GPLv2+
 URL: http://www.gnome.org/projects/NetworkManager/
 
@@ -229,6 +230,7 @@ services.
 %if %{with adsl}
 %package adsl
 Summary: ADSL device plugin for NetworkManager
+Group: System Environment/Base
 Requires: %{name}%{?_isa} = %{epoch}:%{version}-%{release}
 Obsoletes: NetworkManager < %{obsoletes_device_plugins}
 Obsoletes: NetworkManager-atm
@@ -241,6 +243,7 @@ This package contains NetworkManager support for ADSL devices.
 %if %{with bluetooth}
 %package bluetooth
 Summary: Bluetooth device plugin for NetworkManager
+Group: System Environment/Base
 Requires: %{name}%{?_isa} = %{epoch}:%{version}-%{release}
 Requires: NetworkManager-wwan = %{epoch}:%{version}-%{release}
 Requires: bluez >= 4.101-5
@@ -255,6 +258,7 @@ This package contains NetworkManager support for Bluetooth devices.
 %if %{with team}
 %package team
 Summary: Team device plugin for NetworkManager
+Group: System Environment/Base
 BuildRequires: teamd-devel
 Requires: %{name}%{?_isa} = %{epoch}:%{version}-%{release}
 Obsoletes: NetworkManager < %{obsoletes_device_plugins}
@@ -269,6 +273,7 @@ This package contains NetworkManager support for team devices.
 %if %{with wifi}
 %package wifi
 Summary: Wifi plugin for NetworkManager
+Group: System Environment/Base
 Requires: %{name}%{?_isa} = %{epoch}:%{version}-%{release}
 
 %if %{with iwd} && (0%{?fedora} > 24 || 0%{?rhel} > 7)
@@ -290,6 +295,7 @@ This package contains NetworkManager support for Wifi and OLPC devices.
 %if %{with wwan}
 %package wwan
 Summary: Mobile broadband device plugin for NetworkManager
+Group: System Environment/Base
 Requires: %{name}%{?_isa} = %{epoch}:%{version}-%{release}
 Requires: ModemManager
 Obsoletes: NetworkManager < %{obsoletes_device_plugins}
@@ -303,6 +309,7 @@ devices.
 %if %{with ovs}
 %package ovs
 Summary: Open vSwitch device plugin for NetworkManager
+Group: System Environment/Base
 Requires: %{name}%{?_isa} = %{epoch}:%{version}-%{release}
 %if 0%{?rhel} == 0
 Requires: openvswitch
@@ -316,6 +323,7 @@ This package contains NetworkManager support for Open vSwitch bridges.
 %if %{with ppp}
 %package ppp
 Summary: PPP plugin for NetworkManager
+Group: System Environment/Base
 Requires: %{name}%{?_isa} = %{epoch}:%{version}-%{release}
 Requires: ppp = %{ppp_version}
 Requires: NetworkManager = %{epoch}:%{version}-%{release}
@@ -328,6 +336,7 @@ This package contains NetworkManager support for PPP.
 
 %package glib
 Summary: Libraries for adding NetworkManager support to applications (old API).
+Group: Development/Libraries
 Requires: dbus >= %{dbus_version}
 Requires: dbus-glib >= %{dbus_glib_version}
 Conflicts: NetworkManager-libnm < %{epoch}:%{version}-%{release}
@@ -340,6 +349,7 @@ the older NetworkManager API. See also NetworkManager-libnm.
 
 %package glib-devel
 Summary: Header files for adding NetworkManager support to applications (old API).
+Group: Development/Libraries
 Requires: %{name}-glib%{?_isa} = %{epoch}:%{version}-%{release}
 Requires: glib2-devel
 Requires: pkgconfig
@@ -357,6 +367,7 @@ This is the older NetworkManager API.  See also NetworkManager-libnm-devel.
 
 %package libnm
 Summary: Libraries for adding NetworkManager support to applications (new API).
+Group: Development/Libraries
 Conflicts: NetworkManager-glib < %{epoch}:%{version}-%{release}
 
 %description libnm
@@ -367,6 +378,7 @@ NetworkManager API.  See also NetworkManager-glib.
 
 %package libnm-devel
 Summary: Header files for adding NetworkManager support to applications (new API).
+Group: Development/Libraries
 Requires: %{name}-libnm%{?_isa} = %{epoch}:%{version}-%{release}
 Requires: glib2-devel
 Requires: pkgconfig
@@ -380,6 +392,7 @@ is the new NetworkManager API. See also NetworkManager-glib-devel.
 %if %{with connectivity_fedora}
 %package config-connectivity-fedora
 Summary: NetworkManager config file for connectivity checking via Fedora servers
+Group: System Environment/Base
 BuildArch: noarch
 Provides: NetworkManager-config-connectivity = %{epoch}:%{version}-%{release}
 
@@ -392,6 +405,7 @@ via Fedora infrastructure.
 %if %{with connectivity_redhat}
 %package config-connectivity-redhat
 Summary: NetworkManager config file for connectivity checking via Red Hat servers
+Group: System Environment/Base
 BuildArch: noarch
 Provides: NetworkManager-config-connectivity = %{epoch}:%{version}-%{release}
 
@@ -403,6 +417,7 @@ via Red Hat infrastructure.
 
 %package config-server
 Summary: NetworkManager config file for "server-like" defaults
+Group: System Environment/Base
 BuildArch: noarch
 
 %description config-server
@@ -418,6 +433,7 @@ deployments.
 
 %package dispatcher-routing-rules
 Summary: NetworkManager dispatcher file for advanced routing rules
+Group: System Environment/Base
 BuildArch: noarch
 Provides: %{name}-config-routing-rules = %{epoch}:%{version}-%{release}
 Obsoletes: %{name}-config-routing-rules < %{epoch}:%{version}-%{release}
@@ -431,6 +447,7 @@ configurations using "/etc/sysconfig/network-scripts/rule-NAME" files
 %if 0%{with_nmtui}
 %package tui
 Summary: NetworkManager curses-based UI
+Group: System Environment/Base
 Requires: %{name} = %{epoch}:%{version}-%{release}
 Requires: %{name}-libnm%{?_isa} = %{epoch}:%{version}-%{release}