Automatic merge from submit-queue (batch tested with PRs 48473, 48341)
Refactor podListEqual()
**What this PR does / why we need it**:
To solve the problem:
this is not correct if there are duplicate pods in the list.
for example: podListEqual([a, a, b], [a, b, b]) will return true
**Special notes for your reviewer**:
the original method is O(N^2), while current method is 3* O(N).
I think it is much better.
**Release note**:
```release-note
NONE
```
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