Additional PRs which fix some bugs in azure pipeline

691c37b [Route bulk] Fix bugs in case a SET operation follows a DEL operation in the same bulk (#2086)
a4c80c3 patch for issue #1971 - enable Rx Drop handling for cisco-8000 (#2041)
71751d1 [macsec] Support setting IPG by gearbox_config.json (#2051)

Signed-off-by: Stephen Sun <[email protected]>

Author: stephenxs