merge master branch#4

Merged

shine4chen merged 6 commits intoshine4chen:rif-change-macfrom

sonic-net:master

Nov 30, 2019

Commits on Nov 19, 2019

[orchagent] warning fixes for 32bit arch compilation (#1129)

antony-rheneus
authored and
lguohan
committed
[orchagent] Adds swss support for drop counters (#1075)

daall
authored and
yxieca
committed

Commits on Nov 25, 2019

[vstest]: gather logs when dvs fail to start (#1140)
lguohan
authored

Commits on Nov 26, 2019

[MultiDB]: using new APIs in orch agents and mocktest (#1138)

dzhangalibaba
authored and
qiluo-msft
committed

Commits on Nov 27, 2019

[teamsyncd]: Add retry logic in teamsyncd to avoid team handler init failure (#854)

stcheng
authored and
pavel-shirshov
committed
Cleanup configure.ac from BFN specific code (#1133)

akokhan
authored and
lguohan
committed