Re-enable using optimized linaro toolchain

Change-Id: I9bada9d6c9be79a231f9901a0d20f12e7c277871
aries-common: enable KSM by default

Was enabled by default by Google for crespo

Change-Id: I0951eeed152020e684e9e9e7aa17bac05120d044

Conflicts:

	device_base.mk