* [TestbedV2]Migrate t0 and t1-lag to TestbedV2 (#12383)
signed-off-by: jianquanye@microsoft.com
Migrate the t0 and t1-lag test jobs in buildimage repo to TestbedV2.
Why I did it
Migrate the t0 and t1-lag test jobs in buildimage repo to TestbedV2.
How I did it
Migrate the t0 and t1-lag test jobs in buildimage repo to TestbedV2.
Remove ceos type setting
Use 202012 branch as sonic-mgmt branch
* Modify template to use 202012 branch
