BSSGP_Emulation: Fix handling of BsgpResetRequest

We need to change to BLOCKED local state in order to activate
the altstep which handles the inbound BVC-RESET-ACK.

Change-Id: I32ede586f0977b7d96af9fe3ea5fae485184ea98

library/BSSGP_Emulation.ttcnpp

@@ -1225,6 +1225,7 @@ private altstep as_ptp_allstate() runs on BSSGP_BVC_CT {
 		}
 
 	[] MGMT.receive(BssgpResetRequest:?) -> value brr {
+		f_ptp_change_state(BVC_S_BLOCKED);
 		f_ptp_sendReset(brr.cause);
 		}
 }