Reset mSavedState in onNewIntent because the activity is refreshing.

Currently mSavedState is reset to false in just onResume, but it needs
to be reset earlier so that the dialpad is allowed to show itself when
an ACTION_DIAL intent is sent.

Bug: 18242314
Change-Id: I9ddd2a431edc4c2d1cc447b14ee8d1347d139552