Merge "gd/hci: fix warnings" into main am: 6920ebe9

Original change: https://android-review.googlesource.com/c/platform/packages/modules/Bluetooth/+/3178202



Change-Id: I355670212681e1d8bb7f12e564a8ee5715c35166
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>