Merge "Disable balloon for custom vm by default" into main am: 63f32a4d28

Original change: https://android-review.googlesource.com/c/platform/packages/modules/Virtualization/+/3249602

Change-Id: Ica05ed133175ace91a07f54ee5bcbdb9d43b97f2
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>