Hide "respond via SMS" option for non-default SMS SIM.

If an incoming call is coming in through the non-default SMS SIM, do not
show the "respond via SMS" option. This is to prevent accidentally
sending the SMS through a SIM the user may not want to use for SMS.

Bug: 18275919
Change-Id: I0136f30d6341e72ac6e914de41f9c41bd58f1bbb