ARM: ux500: add spin_unlock(&master_lock).
ARM: ux500: add spin_unlock(&master_lock).

Add the missing spin_unlock statement to unlock
master_lock when prcmu_gic_decouple() return TRUE

Signed-off-by: steve zhan <ac27b903c88ba9e815329463927e6679a82c2447@gmail.com>
Signed-off-by: Linus Walleij <9cd9d802d23c0ed5e224beabf4ae4a5c478746ef@linaro.org>

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