DRAPartitionableDevices downstream featuregate changes to the openshift/api are merged[1]
Following is the openshift/origin PR[2] that tests basic DRA APIs on an NVIDIA GPU

As part of this user story:

• We should have some e2e tests that enable the downstream DRAPartitionableDevices featuregate following the above framework in openshift/origin repo

References:
[1] - https://github.com/openshift/api/pull/2694 
[2] - https://github.com/openshift/origin/pull/30758 

DRA Partitionable Devices KEP: https://github.com/kubernetes/enhancements/issues/4815