Don't overwrite in-use Weaver slots during VTS am: 86b9048544 am: 48325db6c8 am: 7dd5fb08a2

Original change: https://googleplex-android-review.googlesource.com/c/platform/hardware/interfaces/+/24151703

Change-Id: I3504bc9c0e02a0606afa5b07238e4ba97050474c
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>