Bluetooth: btusb: Enable Intel events even if already in operational mode

In case the controller is already in operation mode, the Intel specific
events will not be enabled. Fix this by jumping to a common finish
section that will allow setting final details for the controller.

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