Throw DeadObjectException on failed transaction, not RuntimeException

In practice we only see failed transactions with small payloads when
the remote dies while the binder operation is in flight.  Throw the
applicable exception type rather than the generic "oops binder went
haywire" one.

Bug 22104446

Change-Id: I785c15617db7a1f4d505aa11f16e61551c8357ba