Merge "More javadoc for capabilities" into main am: 6a33357da2

Original change: https://android-review.googlesource.com/c/platform/packages/modules/Virtualization/+/2953860

Change-Id: Ib8daed32cbfafe5b07d8bff87d84ac9d16bb9d6f
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>