Test Plan: Verification of LLDP_ENTRY_TABLE in SONiC APPL_DB

[ZhaohuiS]

Description of PR

Summary: Fixes # (issue) Address https://github.com/sonic-net/sonic-mgmt/issues/13937 Test gap implementation: https://github.com/sonic-net/sonic-mgmt/pull/14216

ADO: 28941599

Type of change

• [ ] Bug fix
• [ ] Testbed and Framework(new/improvement)
• [ ] Test case(new/improvement)

Back port request

• [ ] 202012
• [ ] 202205
• [ ] 202305
• [ ] 202311
• [ ] 202405

Approach

What is the motivation for this PR?

testplan of verification of LLDP_ENTRY_TABLE in SONiC APPL_DB

How did you do it?

How did you verify/test it?

Any platform specific information?

Supported testbed topology if it's a new test case?

Documentation