HID: sony: Add conditionals to enable all features in Bluetooth mode

Add the conditionals to enable rumble, battery reporting, LED and touchpad
support for the Dualshock 4 in Bluetooth mode.

Add dualshock4_set_operational_bt to initialize the controller to the proper
operational state.

Signed-off-by: Frank Praznik <frank.praznik@oh.rr.com>
Reviewed-by: David Herrmann <dh.herrmann@gmail.com>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>