Make the driver report Y/RY up as positive value and down as negative. Also
make DPAD mapping the same as classic xpad.
Reported-by: NBrian Magnuson <bdmagnuson@gmail.com>
Tested-by: NJan Kratochvil <honza@jikos.cz>
Signed-off-by: NDmitry Torokhov <dtor@mail.ru>