Prevent stock OTA activities from running in CM

Change-Id: I3f586cd246fc351afb82c94f41329bf930f6f41a
Signed-off-by: scott <scott@ubuntu.com>

Conflicts:
	config/common.mk
otablock: also disable BroadcastReceiver

otherwise it'll prevent the device from going to sleep

Change-Id: I56e20c4b3e33c78f30e095f38240d6663c9d74f5
CellBroadcastReceiver

- Build it.
- Enable config_cellBroadcastAppLinks

Change-Id: If0e3488d30b673782555254c473ea1e56758555d
Use Package Manager to disable stock OTA

This reverts commit ea14a88a2ac567104f267fda5a4507d0ae48040c.

Using the Package Manager prevents any danling wakelock from
killed service/receiver.

Change-Id: Ie3162ca4b18a7bc9c55613af39e88ea980407e5f
Signed-off-by: scott <scott@ubuntu.com>

Conflicts:
	config/common.mk
Update prebuilts.
Signed-off-by: scott <scott@ubuntu.com>