nl80211: Convert sched_scan_req pointer to RCU pointer

Because of possible races when accessing sched_scan_req pointer in
rdev, the sched_scan_req is converted to RCU pointer.

Signed-off-by: Jukka Rissanen <jukka.rissanen@linux.intel.com>
Signed-off-by: Johannes Berg <johannes.berg@intel.com>

diff --cc include/net/cfg80211.h
Simple merge

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

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

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

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