Move libs/libvmbase/example/tests/ under tests/ am: c394f994e6

Original change: https://android-review.googlesource.com/c/platform/packages/modules/Virtualization/+/3218237

Change-Id: I7b1bd3af01faf39682a2042697e69987d0fb215b
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>