miss necessary argument for calling __assignTestPortIps

[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

Approach

What is the motivation for this PR?

encounter syntax issue for t1 device qos sai test

            testPortIps[src_dut_index] = {}
>           testPortIps[src_dut_index][src_asic_index] = self.__assignTestPortIps(src_mgFacts)
E           TypeError: __assignTestPortIps() takes exactly 3 arguments (2 given)

RCA:
introduced by PR #10131

How did you do it?

assign necessary argument "topo"

How did you verify/test it?

pass local test

Any platform specific information?

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

Documentation

[XuChen-MSFT]

@wangxin @StormLiangMS
can you help to merge?