Merge "Add more details about Service VM to its doc" into main am: 578d4563a5 am: 175df4ed7d

Original change: https://android-review.googlesource.com/c/platform/packages/modules/Virtualization/+/3091351

Change-Id: I257d17223374ee15adf025413dec14843975a5b4
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>