[pull] master from Azure:master#72

Merged

pull[bot] merged 5 commits intopphuchar:masterfrom

sonic-net:master

May 18, 2019

Commits on May 18, 2019

[build]: install rsyslog and vim in sonic-slave-stretch (#2920)
lguohan
authored
[swss-common]: Update common submodule (#2918)

Shuotian Cheng
authored and
lguohan
committed
[device/Arista] Add support for the 7280CR3-32P4 (#2910)

Staphylo
authored and
lguohan
committed
[Accton AS7326]: Add lpmode in sfputil.py (#2905)

brandonchuang
authored and
lguohan
committed
[sonic-cfggen]: fix bug in file sonic-cfggen (#2834)

jihaix
authored and
lguohan
committed