t0lte: initial L bring up

-selinux policies still need work
-switch fstab to by-name

Change-Id: I397931d0aa2ea7887774007acf40c9f03e66fb14

Conflicts:
	BoardCommonConfig.mk
	overlay/frameworks/base/core/res/res/values/config.xml
	rootdir/fstab.smdk4x12
	selinux/file.te