bluetooth: Fix some linter error

This is to prepare for COIL patch

BUG=none
TEST=none

Change-Id: Id6089963e542a3d58666dcfa2e5c919a0126038f
Reviewed-on: https://chromium-review.googlesource.com/c/chromiumos/platform/chameleon/+/2821424
Reviewed-by: Michael Sun <michaelfsun@google.com>
Reviewed-by: Shyh-In Hwang <josephsih@chromium.org>
Tested-by: Archie Pusaka <apusaka@chromium.org>
Commit-Queue: Archie Pusaka <apusaka@chromium.org>
5 files changed