When phone changes update InBoundSmsHandlers and CellBroadcastHandlers.

Without this change for devices where the phone can change, for instance
on N5 with Sprint the phone will change from a GSMPhone to a CDMALTEPhone
and messages will not be sent to the appropriate handler.

For Sprint this was most readily seen when the voice mail notification
wasn't sent to the notification manager.

Bug: 11254397
Change-Id: Ia0e764cf6fa04208a7e194a35435f251a177309f