[submodules] update swss and utilities pointers#2597

Merged

mykolaf merged 3 commits intosonic-net:masterfrom

mykolaf:submodule

Feb 26, 2019

Commits on Feb 22, 2019

[submodule] update swss pointer
Mykola Faryma
committed
[submodule] update utilities pointer
Mykola Faryma
committed

Commits on Feb 25, 2019

[sonic-slave] install mockredispy (for utilities build)
Mykola Faryma
committed