This fixes the compilation of the AR934x NAND controller
driver for kernel 5.4 while leaving it untouched for
kernel 4.19.
This change is currently not run-tested, as i do not have such
a device at hand.
CC: Michal Cieslakiewicz <michal.cieslakiewicz@wp.pl>
CC: André Valentin <avalentin@marcant.net>
CC: WeiDong Jia <jwdsccd@gmail.com>
Signed-off-by: David Bauer <mail@david-bauer.net>
Tested-by: Michal Cieslakiewicz <michal.cieslakiewicz@wp.pl>