Merge "btadapterd: Rename adapter_index to virt_index" into main am: f10da57c am: 8967e62b

Original change: https://android-review.googlesource.com/c/platform/packages/modules/Bluetooth/+/2795707



Change-Id: I393d41a35d5534701030a09c9443d25b28128e99
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>