Automatic merge from submit-queue (batch tested with PRs 53507, 53772, 52903, 53543). If you want to cherry-pick this change to another branch, please follow the instructions <a href="https://github.com/kubernetes/community/blob/master/contributors/devel/cherry-picks.md">here</a>.

Split downward API e2e test case for pod/host IP into two

**What this PR does / why we need it**:
Split the test case in order to avoid version block pod IP e2e test.

**Which issue this PR fixes** *(optional, in `fixes #<issue number>(, fixes #<issue_number>, ...)` format, will close that issue when PR gets merged)*: fixes #
ref: https://github.com/kubernetes/kubernetes/pull/42717#discussion_r144026427

**Special notes for your reviewer**:
/cc @timothysc @andrewsykim