Modified test cases by QOS DB reference format remove#3824

Merged

smaheshm merged 3 commits intosonic-net:masterfrom

AshokDaparthi:sonic-yang-qos-fv-db-ref-remove

Sep 27, 2021

Commits on Sep 20, 2021

Modified test cases by QOS DB reference format remove
AshokDaparthi
committed

Commits on Sep 23, 2021

Modified to testcase to handle QOS DB old and new fomats
AshokDaparthi
committed

Commits on Sep 24, 2021

Addressed review comments
AshokDaparthi
committed