cfg80211: move mutex locking to reg_process_pending_hints()
cfg80211: move mutex locking to reg_process_pending_hints()

This will be required in the next patch and it makes the
next patch easier to review.

Signed-off-by: Luis R. Rodriguez <79e6b8107a8aa3944e09fad43634662ac3b91a0b@atheros.com>
Tested-by: Mark Mentovai <f1b5a91d4d6ad523f2610114591c007e75d15084@moxienet.com>
Tested-by: Bruno Randolf <8baeabad365de895ab58ec0d6dd2c1e27b0ff0b4@einfach.org>
Signed-off-by: John W. Linville <2a53bac7a5d324865ef46ec4c38b2c0fba1456b4@tuxdriver.com>

KristFoundation/Programs,KristFoundation/Programs,TeamVee-Kanas/android_kernel_samsung_kanas,TeamVee-Kanas/android_kernel_samsung_kanas,TeamVee-Kanas/android_kernel_samsung_kanas,TeamVee-Kanas/android_kernel_samsung_kanas,KristFoundation/Programs,TeamVee-Kanas/android_kernel_samsung_kanas,KristFoundation/Programs,KristFoundation/Programs,KristFoundation/Programs