Enable again binding to device

It seems binding to device would work on normal machines. It seems only
systemd-nspawn has problem with that. Fix it by commenting out BintsTo=
line on containers now (reported on rhbz#1941458).

dhcpcd.spec

@@ -3,7 +3,7 @@
 
 Name: dhcpcd
 Version: 9.4.0
-Release: 1%{?dist}
+Release: 2%{?dist}
 Summary: A minimalistic network configuration daemon with DHCPv4, rdisc and DHCPv6 support
 License: BSD
 URL: http://roy.marples.name/projects/%{name}/
@@ -85,6 +85,9 @@ install -d %{buildroot}%{_sharedstatedir}/%{_name}
 %{_sharedstatedir}/%{name}
 
 %changelog
+* Mon Mar 22 2021 Petr Menšík <pemensik@redhat.com> - 9.4.0-2
+- Reenable net device binding
+
 * Fri Mar 19 2021 Petr Menšík <pemensik@redhat.com> - 9.4.0-1
 - Update to 9.4.0
 

dhcpcd@.service

@@ -2,6 +2,8 @@
 Description=dhcpcd on %I
 Wants=network.target
 Before=network.target
+BindsTo=sys-subsystem-net-devices-%i.device
+After=sys-subsystem-net-devices-%i.device
 
 [Service]
 Type=forking