Update PhoneStateListener#onOutgoingEmergencySms

Update the callback for emergency SMS to follow the same pattern as for
emergency calls for API consistency.

Fixes: 168269065
Test: atest CtsTelephonyTestCases:PhoneStateListenerTest
Change-Id: If27771aef1858ea92dd620b56368d1a6a4f61ab3
Merged-In: If27771aef1858ea92dd620b56368d1a6a4f61ab3
6 files changed