media: rc: add support for Infrared Toy and IR Droid devices

http://dangerousprototypes.com/docs/USB_Infrared_Toy
https://www.irdroid.com/irdroid-usb-ir-transceiver/



Reviewed-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: Sean Young <sean@mess.org>
Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>