pvmfw: Get vcpufreq by compat & NOP unused OPPs am: c37c72e6fc am: 4b433d2c16

Original change: https://android-review.googlesource.com/c/platform/packages/modules/Virtualization/+/2963845

Change-Id: I3188fc131fdb1e5bb92e4a147cd48e38756fcb4a
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>