Revert "Use device specific gps.conf files & fall back to gps.conf"

This reverts commit 0d982fcf57fbc815277440795b20ea2bd3097c8b.
Revert "G2: Cleanup & Fixup init.g2.rc & fstab.g2 mounting & permissions"

This reverts commit 870ab00fac8de4ba6c9a86c6536fa797c9219442.

Conflicts:
	init.g2.rc
A little somthing to help Odex builds build..
Revert "Use QCOM BIONIC OPTIMIZATION... there currently is no krait flag in bionic anyway"

This reverts commit cf0eaca6a7bb51ed91982edc87092d3dd8b6c05e.