Prevent preciseCallStateChanged from firing for media capabilities change.

In processCallStateChanged, there was the potential for
"notifyPreciseCallStateChanged()" to be called, even if ignoreState was
true.  Moved the code for invoking the precise call state changed
callback into the "else" clause of the conditional.

Bug: 22564433
Change-Id: Ib2a05bd5f592005d57623812c6cd40c2bfcbf253