IAE seen in CSIT logs when port/vlan name is not matching UUID regexp

example of exception seen:

java.lang.IllegalArgumentException: Supplied value "48670824969814:br-physnet1-pa:1235" does not match required pattern "^[0-9a-fA-F]

-[0-9a-fA-F]

-[0-9a-fA-F]

-[0-9a-fA-F]

$"

this started happening around 4/26. After digging through logs, it seems
it came between CSIT runs [a] and [b]. that list is here [c]. Since this
is an exception coming from genius, my best guess at the patch that
exposed this exception is [d], but I'll let the experts determine that.

with a little more digging you can find the patches that made it in to
the distributions between [a] and [b].
[a] https://logs.opendaylight.org/releng/jenkins092/netvirt-csit-1node-openstack-newton-nodl-v2-upstream-stateful-carbon/429
[b]https://logs.opendaylight.org/releng/jenkins092/netvirt-csit-1node-openstack-newton-nodl-v2-upstream-stateful-carbon/431
[c] https://logs.opendaylight.org/releng/jenkins092/distribution-merge-carbon/1657/archives/distribution_differences.txt.gz
[d] https://git.opendaylight.org/gerrit/#/c/54251/