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Automatic merge from submit-queue. 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>. Add stub device plugin for conformance e2e test **What this PR does / why we need it**: Add stub device plugin for conformance e2e test - extend [device_plugin_stub](https://github.com/kubernetes/kubernetes/blob/master/pkg/kubelet/cm/deviceplugin/device_plugin_stub.go) to support e2e test - add test suite with this device-plugin-stub - simulate more use cases by deploying some pods to request these resources **Which issue this PR fixes**: fixes #52861 **Special notes for your reviewer**: @vishh @jiayingz PTAL. **Release note**: ```release-note None ```