g2: device tree overhaul to work with new kk modems

Change-Id: I272593961bfc10f1f2fb9f53a37eb8656b777f26
credit: dr87 https://github.com/dr87/4.4_g2-common

Conflicts:
	Android.mk
	BoardConfigCommon.mk
	configs/mixer_paths.xml
	fstab.g2
	g2.mk
	overlay/frameworks/base/core/res/res/values/config.xml
	overlay/packages/apps/Torch/res/values/config.xml
	ramdisk/init.g2.rc