src: Add missing include <stdint.h>

Change-Id: I6a9d71e69ed9230b92f0f330875515a5df29fc06
Signed-off-by: Elyes HAOUAS <ehaouas@noos.fr>
Reviewed-on: https://review.coreboot.org/29312
Reviewed-by: Nico Huber <nico.h@gmx.de>
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
diff --git a/src/mainboard/google/rambi/variants/glimmer/include/variant/variant.h b/src/mainboard/google/rambi/variants/glimmer/include/variant/variant.h
index 59d5ee1..2810551 100644
--- a/src/mainboard/google/rambi/variants/glimmer/include/variant/variant.h
+++ b/src/mainboard/google/rambi/variants/glimmer/include/variant/variant.h
@@ -14,6 +14,8 @@
 #ifndef VARIANT_H
 #define VARIANT_H
 
+#include <stdint.h>
+
 /*
  * RAM_ID[2:0] are on GPIO_SSUS[39:37]
  * 0b0000 - 4GiB total - 2 x 2GiB Micron  MT41K256M16HA-125:E 1600MHz