osmux: Mark conn_rtp->type as osmux during CRCX

We also update code to allow setting up RTP related fields to succeed
during CRCX. We also update code to allow setting up RTP related fields to
succeed during CRCX.

Change-Id: Ia6e723d9a28ba38fc3382a4fb35ea6e5bab30c09
diff --git a/src/libosmo-mgcp/mgcp_osmux.c b/src/libosmo-mgcp/mgcp_osmux.c
index d91cf68..7290ba3 100644
--- a/src/libosmo-mgcp/mgcp_osmux.c
+++ b/src/libosmo-mgcp/mgcp_osmux.c
@@ -664,6 +664,7 @@
 
 	conn->osmux.cid = (uint8_t) osmux_cid;
 	conn->osmux.cid_allocated = true;
+	conn->type = MGCP_OSMUX_BSC;
 	return osmux_cid;
 }