powerpc/85xx: p1022ds: Use NULL instead of 0 for pointers

The third argument for of_get_property() is a pointer, hence pass
NULL instead of 0.

Signed-off-by: Tushar Behera <tushar.behera@linaro.org>
Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
1 file changed