sunxi: gpio: introduce compatible string for V3 GPIO

A new compatible string is introduced for V3 GPIO, because it has more
pins available than V3s.

Add the compatible string to the GPIO driver.

Signed-off-by: Icenowy Zheng <icenowy@aosc.io>
Reviewed-by: Jagan Teki <jagan@amarulasolutions.com>
1 file changed