#3542 set adminstate to disable when pool weight is 0 for transport server

[vidyasagar-m]

Description: Change of weight from primary to alternate backend is not graceful for transport server

Changes Proposed in PR: Will set admin state to disable when pool weight is 0 for transport server

Fixes: resolves #3542

General Checklist

• [x] Updated Added functionality/ bug fix in release notes
• [x] Smoke testing completed

[vidyasagar-m]

/azp run

[azure-pipelines[bot]]

Azure Pipelines successfully started running 1 pipeline(s), but failed to run 1 pipeline(s).

[vidyasagar-m]

/azp run

[azure-pipelines[bot]]

Azure Pipelines successfully started running 1 pipeline(s), but failed to run 1 pipeline(s).