controlif: Adapt to minor data structure change regarding nm_state

This was required due to master diverging from where controlif
had last branched off.
diff --git a/openbsc/src/osmo-bsc/osmo_bsc_main.c b/openbsc/src/osmo-bsc/osmo_bsc_main.c
index 248944b..1eb8abd 100644
--- a/openbsc/src/osmo-bsc/osmo_bsc_main.c
+++ b/openbsc/src/osmo-bsc/osmo_bsc_main.c
@@ -260,7 +260,7 @@
 		return CTRL_CMD_ERROR;
 	}
 
-	cmd->reply = talloc_asprintf(cmd, "%u", trx->nm_state.administrative == NM_STATE_LOCKED ? 1 : 0);
+	cmd->reply = talloc_asprintf(cmd, "%u", trx->mo.nm_state.administrative == NM_STATE_LOCKED ? 1 : 0);
 	return CTRL_CMD_REPLY;
 }