mako: enable echo cancellation for voice communication

This greatly improves the quality of VoIP calls, tested on the app
"LINE". Without this, the other party will be able to hear echo
of their own voice.

Reference: http://source.android.com/devices/audio_implement.html#preprocessing

Change-Id: Id0ccb732778ecc8d4c9e140249ec230654f351cc
Merge "mako: enable echo cancellation for voice communication" into cm-11.0
ODEX build
Linaro Toolchain
mako: TWRP-ify

Change-Id: I376143f08d3150986614c3d6fd2d0d4d3f9a05fd

Conflicts:
	BoardConfig.mk

Fix TWRP-ify commit

This will also fix sounds problems.
Thanks @Entropy512

Change-Id: I80740cb492250c7afdd1499457e4669ccee88dbb
Add F2FS support
Customize kernel