mgcp-cli: Parse X-Osmux on CRCX response

Change-Id: I6174d092b7425b8d3d6d02a55bf294be3e710e6a
diff --git a/TODO-RELEASE b/TODO-RELEASE
index 8fa535c..14cb163 100644
--- a/TODO-RELEASE
+++ b/TODO-RELEASE
@@ -26,3 +26,4 @@
 #library		what		description / commit summary line
 libosmo-mgcp-client	add struct members	    AMR SDP/fmtp parameter generation
 libosmo-mgcp-client     add struct members	    Osmux use+cid fields to struct mgcp_msg and mgcp_conn_peer
+libosmo-mgcp-client     add struct members	    Osmux use+cid fields to struct mgcp_response_head