Merge "Fastboot AIDL additional changes" am: f4756ff0f1

Original change: https://android-review.googlesource.com/c/platform/hardware/interfaces/+/2293424

Change-Id: I30a3eb8aa917833c05688c998e350b2369efce00
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>