gpio-nct5104d: fix compilation with kernel 6.6
gpio.h has been deprecated for a while and no longer compiles with 6.6.
Include the proper header.
Signed-off-by: Rosen Penev <[email protected]>
Link: https://github.com/openwrt/openwrt/pull/15471
Signed-off-by: Robert Marko <[email protected]>