Drop dhcp-client dependendencies from modular build
ISC DHCP implementation is going to be deprecated soon in favor of
NetworkManager and all spins but modular switched to using NM already.
Dropping dhcp-client from the modular build as well and re-enable NM
service
Bug-Url: https://bugzilla.redhat.com/1845933
Signed-off-by: Pavel Zhukov <pzhukov@redhat.com>