cfg80211: respect iface combinations when starting operation

devlist_mtx locking is changed to accomodate changes.

Signed-off-by: Michal Kazior <michal.kazior@tieto.com>
Signed-off-by: Johannes Berg <johannes.berg@intel.com>

diff --cc net/wireless/core.c
Simple merge

diff --cc net/wireless/ibss.c
Simple merge

diff --cc net/wireless/mesh.c
Simple merge

diff --cc net/wireless/mlme.c
Simple merge

diff --cc net/wireless/nl80211.c
Simple merge

diff --cc net/wireless/util.c
Simple merge