Fix bug 1994955 where PHONE_TYPE_CDMA was 0 and it should be 2 and added RILConstants.NO_PHONE.

This bug originally reported that PHONE_TYPE_CDMA needed to be 2 because
it was public. But as far as I can tell it has never been public and it
is still marked @hide so is not public now. There is a bug in that
PHONE_TYPE_NONE and PHONE_TYPE_CDMA were both 0. But this doesn't
appear to have been a problem because PHONE_TYPE_NONE doesn't looked to be
used anywhere except in TelephonyManagerTest.