Verify modified RV dag for mobile service

If the mobile service receives a DAG different from the one it bound to,
it verifies that the only difference in the DAG is its current AD vs.
the one it bound to. This check is in transport and the SYN will be
dropped if the check fails.
Merge branch 'intrinsic_security' of github.com:XIA-Project/xia-core into intrinsic_security