Multi-carrier overlays: Fix Mms

 -Set default uaProfUrl which can then be overridden
 -Add verizon eri for 31099

Change-Id: I24c9ab498cf4058367987cfe12513c4adddb7543
(cherry picked from commit f8b0737a435d211b01baf5df3feb9f98039884e2)
Add OmniSwitch

(cherry picked from commit 0e98f396545b9a3fdeb8344e2daec436a016c944)

Conflicts:
	config/common.mk