Makefile: Add missing CONFIG_BOARD_SIZE_LIMIT check for u-boot-spl.kwb

Currently CONFIG_BOARD_SIZE_LIMIT check is ignored for u-boot-spl.kwb
target. Fix it by adding missing $(BOARD_SIZE_CHECK) macro.

Signed-off-by: Pali Rohár <pali@kernel.org>
Reviewed-by: Marek Behún <kabel@kernel.org>
Reviewed-by: Stefan Roese <sr@denx.de>
1 file changed