PBAP: Disable SIM card contact supported

* In BluetoothPbapObexServer.java's onGet() method, the logic says that
  we do not currently support syncing contacts from SIM card, but yet
  our PBAP SDP record indicates such support.
* When car kits receive such SDP record, they will try getting SIM card
  contacts from us, and we will reply with OBEX_HTTP_NOT_ACCEPTABLE
* This cause certain car kit to disconnect PBAP from us, resulting in
  unfinished phonebook sync

Bug: 67084846
Test: Test connect PBAP to car kit
Change-Id: I0f892714e5f7669224bd696ddc93f7cda2d95e4f