iwlwifi: mvm: do no sched scan while associated

Currently the FW doesn't support sched scan while associated,
Prevent it.

Signed-off-by: David Spinadel <david.spinadel@intel.com>
Reviewed-by: Johannes Berg <johannes.berg@intel.com>
Reviewed-by: Luciano Coelho <luciano.coelho@intel.com>
Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>

diff --cc drivers/net/wireless/iwlwifi/mvm/mac80211.c
Simple merge

diff --cc drivers/net/wireless/iwlwifi/mvm/mvm.h
Simple merge

diff --cc drivers/net/wireless/iwlwifi/mvm/utils.c
Simple merge