Fix to set active sub to conversation sub

On disconnection of a call update active subscription to conversation
subscription based on current LCH state.

Change-Id: Ia43e30a3cf81928bd3e43c400ea622cfe7d89a83
CRs-Fixed: 726443

Conflicts:
	src/com/android/server/telecom/CallsManager.java

Change-Id: Ia43e30a3cf81928bd3e43c400ea622cfe7d89a83
1 file changed