[202205] fix keyerror of PR #10382

[XuChen-MSFT]

Description of PR

Summary:
Fixes # (issue)

Type of change

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

Back port request

• 201911
• 202012
• 202205
• 202305
• 202311

Approach

What is the motivation for this PR?

double commit PR #11722

PR #10382 caused below two KeyError:

    @pytest.fixture(scope="function", autouse=False)
    def skip_pacific_dst_asic(self, dutConfig):
>       if dutConfig['dstDutAsic'] == "pac":
E       KeyError: 'dstDutAsic'

        if "wm_pg_shared_lossless" in pgProfile:
            pktsNumFillShared = qosConfig[pgProfile]["pkts_num_trig_pfc"]
        elif "wm_pg_shared_lossy" in pgProfile:
>           if dutConfig['dstDutAsic'] == "pac":
E           KeyError: 'dstDutAsic'

How did you do it?

fix keyerror

How did you verify/test it?

Any platform specific information?

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

Documentation