Migrate IUsbGadget implementation to AIDL am: d6d0b7d2ca am: a912032b9d am: 7d8c7aa768

Original change: https://android-review.googlesource.com/c/device/google/gs101/+/2361897

Change-Id: I5a35d64da039e377cb77d984fc752ffca9d6464e
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>