src/soc/samsung/exynos{5250,s5420}: Add missing <{stddef,stdint}.h>

Change-Id: I34b8083eb14d5f82699cf92744000a416d2816ea
Signed-off-by: Elyes HAOUAS <ehaouas@noos.fr>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/43944
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Julius Werner <jwerner@chromium.org>

src/soc/samsung/exynos5250/spi.c

@@ -7,6 +7,8 @@
 #include <soc/clk.h>
 #include <soc/gpio.h>
 #include <soc/spi.h>
+#include <stddef.h>
+#include <stdint.h>
 #include <symbols.h>
 
 #if defined(CONFIG_DEBUG_SPI) && CONFIG_DEBUG_SPI

src/soc/samsung/exynos5420/spi.c

@@ -6,6 +6,8 @@
 #include <soc/cpu.h>
 #include <soc/spi.h>
 #include <spi-generic.h>
+#include <stddef.h>
+#include <stdint.h>
 #include <string.h>
 #include <symbols.h>