BACKPORT: mac80211: allow creating wiphy devices with suggested name

Support creating wiphy devices with an optional name.
This will be used by hwsim to have better automated control
over virtual radio creation/deletion.

Signed-off-by: Ben Greear <greearb@candelatech.com>
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
(cherry picked from commit ad28757e)
[astrachan: Minor rediff required for context changes only]
Bug: 70214720
Change-Id: Ib6c67070e873e2f911ae8c6eb6c924f9585483f9
Signed-off-by: Alistair Strachan <astrachan@google.com>