Remove Sprint stuffs

Change-Id: Ic4d2c88bd894d710aa5eca9025c195152e72cdba
Remove Sprint overlays

Change-Id: Ib6dd86af65c313c5e74b95f75b05eb1dbe90ffe6
Add KDDI overlay and APNs

Change-Id: I99be59c0d96db4fb88ce5b1004fe0dac85a56bd3