The keys are added to the generic wireless mappings in case other
keyboards use them. Note that the product ID for the MX3200 is the same
as USB_DEVICE_ID_S510_RECEIVER_2.
Signed-off-by: NLorenzo Castelli <lcastelli@gmail.com>
Signed-off-by: NJiri Kosina <jkosina@suse.cz>