Phone object for a subId.

getPhoneFromSubId() can return null if input subId is not active.
Use default phone when getPhoneFromSubId() is null.

Bug: 261683747
Test: Manual, Make incoming and outgoing calls.
Change-Id: Ifba00a2983e1c7d1b9c2d71b3c34364c598129b4
1 file changed