m7vzw: move overlays to common based off mcc and mnc.

Change-Id: Ifd6ba8cfd972cc4e10c83618f60425a1a0c92186
Merge remote-tracking branch 'cm/cm-11.0' into HEAD

Conflicts:
	overlay/packages/apps/Mms/res/xml/mms_config.xml

Change-Id: I959f783c7c8ecf139acb1e736fff764906bab0ad