Fix IApplicationThread transaction codes.

(IBinder.FIRST_CALL_TRANSACTION=1) is added to the specified
transaction codes during binder generation. Correct transaction
Ids in IApplicationThread taking this into account.

Bug: 30977067
Test: Verified that the transactions in generated binder have
      correct Ids.
Change-Id: Id1f6ce59814ed559cafda01be0d55c78d52e50e2