New firmware type reported from the community that's not in the SDK. Also, we don't actually _use_ the firmware type or device type for anything, so lets not crash if we don't match the bytes - lets just flag it unknown. https://community.openhab.org/t/rfxcom-binding-unsupported-value/123615/12 Signed-off-by: James Hewitt <james.hewitt@uk.ibm.com>