m4: move Phone overlays to Telphony

Change-Id: Ic442693288760d342c4c1a65a4f559ef6bcb0d18
m4: enable ZSL

Change-Id: I3de5d179330442e194cc8643649ce8d3cf73a439
m4: show LTE icon instead of 4G

Change-Id: I72a53d2e1a9a846c24bf900fea62edbc6bd9e371
m4: add enableTorch overlay

Change-Id: I5cbad0e3097bc1b2212ca6d964132d028af89e61
m4: add low_latency audio permission

Change-Id: I3ef8fdbfaf53af35bcba0d2245be451b01bc7090