The "gpio-export" driver doesn't require a "reg" property in the
device tree, hence we don't need to use the "#size-cells" property
to describe the size of "reg".
Signed-off-by: Shiji Yang <yangshiji66@outlook.com>
Link: https://github.com/openwrt/openwrt/pull/18290
Signed-off-by: Robert Marko <robimarko@gmail.com>