The Logitech G Powerplay has a lightspeed receiver with a static HID++
device with ID 7 attached to it to. It is used to configure the led on
the mat. For this reason I increased the max number of devices.
Signed-off-by: NFilipe Laíns <lains@archlinux.org>
Signed-off-by: NJiri Kosina <jkosina@suse.cz>