Fix Linaro unknown CPU architecture

Change-Id: I1d6c786ee7f12b5b508d02afbf0c91c1dbcf282e
fs: import f2fs support 3.0 from arter97 (26/09/2014)
Added optimized CRC32 algorithm.
Added optimized ARM RWSEM algorithm.
Added kernel config option 'PVR_LIMIT_MINFREQ'.
Added kernel config option 'S5PV210_BIGMEM'.

Conflicts:
	arch/arm/mach-s5pv210/Kconfig
	arch/arm/mach-s5pv210/mach-herring.c

Change-Id: Ia4b9403c106c71ab59fda7a2fdb4fcb3c6506026
Increased default readahead value to 1024kB.
Update kernel config

Change-Id: Ie2985a00ab9adb40d7d52a9dbb5f2aeedd5c8c3f