HID: logitech-hidpp: create the battery for all types of HID++ devices

The creation of the power_supply should not be in a HID++ 2.0 specific
function.

Signed-off-by: Benjamin Tissoires <benjamin.tissoires@redhat.com>
Tested-by: Bastien Nocera <hadess@hadess.net>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>