For sflow feature, SAI changes needed for sonic-vs platform#498

Merged

lguohan merged 3 commits intosonic-net:masterfrom

rakeshdatta:sflow-vslib

Sep 15, 2019

Commits on Jul 31, 2019

* Update: For sflow feature, 'tc' command is to be invoked while sampling is configured on a port.
Rakesh Datta
committed
Correct the spell check error
Rakesh Datta
committed

Commits on Aug 14, 2019

* Update: replace global switch_id with the API sai_switch_id_query()
Rakesh Datta
committed