libbinder: RPC state termination shutdown session

Previously, when state was terminated due to an error condition, it may
be the case that a client would still be trying to read data from the
session, but the connection would not be hung up (it would just be
ignored). So, now hanging up the session connections in this case.

Bug: 183140903
Test: binderRpcTest
Change-Id: I8c281ad2af3889cc3570a8d3b7bf3def8c51ec79