Migrate IUsbGadget implementation to AIDL am: d6d0b7d2ca am: a912032b9d

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

Change-Id: I49efae705114ff4145a8b3ab0c930c4fbc40e52f
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>