Merge "pvmfw: Update README for pvmfw 1.3 blob." into main am: f3ae17a45d

Original change: https://android-review.googlesource.com/c/platform/packages/modules/Virtualization/+/3539206

Change-Id: Ie4d220242d7d6959035842c7f27a6a236971dfdd
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>