[coreboot-gerrit] Change in coreboot[master]: soc/rockchip/rk3288/include/soc: Add missing include <stddef.h>

[Julius Werner (Code Review)]

Julius Werner has posted comments on this change. ( https://review.coreboot.org/c/coreboot/+/34235 )

Change subject: soc/rockchip/rk3288/include/soc: Add missing include <stddef.h>
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Patch Set 1: Code-Review+2

nit: personally I prefer <types.h> for this, but I guess it's a matter of taste.