Remove 1400 mhz cpu freq
With only 50 mhz difference from 1350 mhz, I feel like it causes more overhead than power saving.
Fix warning in arch/arm/kernel/smp.c
Fix warning in mm/page-writeback.c
Fix multiple compilation warnings

Conflicts:
	arch/arm/include/asm/pgalloc.h
	drivers/char/random.c
	drivers/misc/bmp180.c