Trivial fixes to sync with RHEL packaging

gnome-shell.spec

@@ -32,6 +32,7 @@ Patch3: 0001-networkAgent-Fix-fallout-from-libnm-port.patch
 %define gsettings_desktop_schemas_version 3.21.3
 %define ibus_version 1.5.2
 %define gnome_bluetooth_version 1:3.9.0
+%define gstreamer_version 1.4.5
 
 BuildRequires:  meson
 BuildRequires:  git
@@ -54,7 +55,7 @@ BuildRequires:  startup-notification-devel
 # for theme generation
 BuildRequires:  sassc
 # for screencast recorder functionality
-BuildRequires:  gstreamer1-devel
+BuildRequires:  gstreamer1-devel >= %{gstreamer_version}
 BuildRequires:  gtk3-devel >= %{gtk3_version}
 BuildRequires:  gettext >= 0.19.6
 BuildRequires:  libcanberra-devel
@@ -77,7 +78,10 @@ BuildRequires: gtk-doc
 Requires:       gnome-bluetooth%{?_isa} >= %{gnome_bluetooth_version}
 %endif
 Requires:       gnome-desktop3%{?_isa} >= %{gnome_desktop_version}
+%if 0%{?fedora}
+# Disabled on RHEL to allow logging into KDE session by default
 Requires:       gnome-session-xsession
+%endif
 # wrapper script uses to restart old GNOME session if run --replace
 # from the command line
 Requires:       gobject-introspection%{?_isa} >= %{gobject_introspection_version}
@@ -99,6 +103,7 @@ Requires:       gsettings-desktop-schemas%{?_isa} >= %{gsettings_desktop_schemas
 Requires:       libcroco%{?_isa} >= %{libcroco_version}
 Requires:       telepathy-logger%{?_isa}
 Requires:       telepathy-glib%{?_isa}
+Requires:       gstreamer1%{?_isa} >= %{gstreamer_version}
 # needed for schemas
 Requires:       at-spi2-atk%{?_isa}
 # needed for on-screen keyboard