Advertise to mac80211 that we can do channel switch both
for STA and AP/GO.
After each beacon transmission check if CSA is done and
call ieee80211_csa_finish if needed.
Signed-off-by: NAndrei Otcheretianski <andrei.otcheretianski@intel.com>
Signed-off-by: NJohannes Berg <johannes.berg@intel.com>