Merge "Allow override of the trusty system vm packages" into main am: af300dcf9a

Original change: https://android-review.googlesource.com/c/platform/packages/modules/Virtualization/+/3552239

Change-Id: I68a3b365c0968c0a0fe1f5c3af23242d21e26490
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>