Bluetooth: btusb: Use hardware error handler from Intel module

The Intel specific Bluetooth module provides now an exported function
for the hardware error. Use that instead of duplicating it inside the
driver.

Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
Signed-off-by: Johan Hedberg <johan.hedberg@intel.com>

diff --cc drivers/bluetooth/btusb.c
Simple merge