session: Use parent_handle instead of transport_opts

Type: feature

This is mostly used for quic in the case of a stream
creation (i.e. connect on an already established QUIC
session). We want do default parent_handle to INVALID
to be able to distinguish it from parent_handle = 0

Change-Id: Id5ac0b0155a3c44e51334231b711e4fd87a96a10
Signed-off-by: Nathan Skrzypczak <nathan.skrzypczak@gmail.com>
diff --git a/src/vcl/vppcom.h b/src/vcl/vppcom.h
index b05eae7..90bec31 100644
--- a/src/vcl/vppcom.h
+++ b/src/vcl/vppcom.h
@@ -105,7 +105,7 @@
   uint8_t is_ip4;
   uint8_t *ip;
   uint16_t port;
-  uint64_t transport_opts;
+  uint64_t parent_handle;
 } vppcom_endpt_t;
 
 typedef uint32_t vcl_session_handle_t;