Raised vm_max_readahed to 4096.
Lowered default max cpu freq to 1512.
Changed min cpu freq to 384 Bumped to 4.4-2

Change-Id: I495e377cbd3231e2223d0e4814486ea24da42770

Conflicts:
	Makefile
	arch/arm/configs/cyanogenmod_exhilarate_defconfig
	arch/arm/configs/cyanogenmod_skyrocket_defconfig