Update tunnelxconn create DGs

Update tunnelxconn DGs to fix
bugs found while trying to
execute DG and create vxlan
tunnel ports and xconnnect
for vG and vBRG.

Issue-Id: SDNC-164
Change-Id: I9a94d72f08f39be8f35c0f413e517c5c969e7878
Signed-off-by: Marcus G K Williams <marcus.williams@intel.com>
Former-commit-id: e211a3aab912e63955b5603aee2171b641a68421