[cherry-pick] [PR:10860] Loganalyzer regex correction for test_po_update

[sanjair-git]

Description of PR

Cherry-Pick PR for 202205 from master #10860

Summary:
Fixes # (issue)

• For PC tests 'test_po_update.py', seen the following LogAnalyzer mismatch related messages being reported as errors.
• Issues seen in PC tests running on chassis with topo t2 multi-asic.
  E Match Messages: E Nov 11 20:41:16.136440 ixre-egl-board3 ERR syncd0#syncd: :- process_on_fdb_event: invalid OIDs in fdb notifications, NOT translating and NOT storing in ASIC DB E E Nov 11 20:41:16.136471 ixre-egl-board3 ERR syncd0#syncd: :- process_on_fdb_event: FDB notification was not sent since it contain invalid OIDs, bug?

Type of change

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

Back port request

• 201911
• 202012
• 202205
• 202305

Approach

What is the motivation for this PR?

• Loganalyzer mismatch errors seen during PC test suites for test_po_update.py tests w.r.t syncd container messages per asic as shown above.

How did you do it?

• Fix the existing regex to support syncd container syslog messages per asic.

How did you verify/test it?

• Ran the PC test cases against a multi-asic line card in a T2 chassis.

Any platform specific information?

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

Documentation