skia: disable large memory optimizations for TARGET_ARCH_LOWMEM

Change-Id: I0b90919101d541527b21ba7bf128e49beed7c64f
Merge pull request #1 from CyanogenMod/cm-11.0

Skia: bug fix for SkBitmapProcState_shaderproc.h
Merge pull request #1 from cr3pt/cm-11.0

TARGET_ARCH_LOWMEM