tree 3aba35686ea94823cf5f2d3c4e2b3c76069fe63b
parent d02d7bda13888efe988ed4d8f573d7aaf58b6c87
author Charles Chan <rascov@gmail.com> 1534985807 -0700
committer Carmelo Cascone <carmelo@opennetworking.org> 1535431803 +0000

ONOS-7759 Explicitly pop VLAN while editing hash group buckets

P4 switch requires explicit pop VLAN when necessary.
This is the missing part of gerrit #19301.

Change-Id: I809a1066cbaddd05154556ad300e59883245e0f7
(cherry picked from commit cee433bc37da8536807e8a5fbbd85315b8ca95bd)