Notify call state when phone app starts and SIM is loaded.

If phone process crashed during an active voice call, even after restart
of phone app, clients still get call state as OFFHOOK since
TelephonyRegistry has the old infomration and whenever new client is
registered that old infomration is given resulting in erroneous UI
behavior. Present fix sends call state update when phone app
starts so that TelephonyRegistry resets its information.

Bug: 27903802
Change-Id: Ia606b79f5646863187af6f3e22ca9aa8edc2bdf1