Restart SipService if it crashes

Currently, if the phone process crashes, the SipService will not restart until
reboot. We will now check to see if the user is unlocked in PhoneGlobals
before attempting to start the SipService (this should only happen if
the process crashes and restarts).

Bug: 28100417
Change-Id: Id512ece318963f7ceb8af5ce9d668a80b21bc98b
4 files changed