contrib/rpm: "Suggest" wpa_supplicant for NetworkManager-wifi package

"NetworkManager-wifi" package requires either wpa_supplicant or iwd.
When installing the package without explicitly installing supplicant
or iwd (and not having it installed yet), then we want to drag in
wpa_supplicant by default. That is accomplished by suggesting wpa_supplicant
package.

Otherwise, the user installing NetworkManager-wifi might get iwd,
which is only functioning if the user explicitly enables the backend
in "NetworkManager.conf".

https://bugzilla.redhat.com/show_bug.cgi?id=1743585

contrib/fedora/rpm/NetworkManager.spec

@@ -328,6 +328,7 @@ Requires: %{name}%{?_isa} = %{epoch}:%{version}-%{release}
 
 %if %{with iwd} && (0%{?fedora} > 24 || 0%{?rhel} > 7)
 Requires: (wpa_supplicant >= %{wpa_supplicant_version} or iwd)
+Suggests: wpa_supplicant
 %else
 # Just require wpa_supplicant on platforms that don't support boolean
 # dependencies even though the plugin supports both supplicant and