gbproxy: Add TC_bvc_reset_sig_from_{sgsn,pcu}

These test cases check if gbproxy behaves as expected when it comes to
dealing with BVC-RESET on the signaling BVC.  The tests are not passing
due to limitations of gbproxy.  So it's not clear if the tests are 100%
correct until gbproxy is fixed.

Change-Id: Iedfe72f539ad3a0653b6ee7a050bf36ae386e88e
1 file changed