mb/amd/birman/display_card_type.h: add missing include

Signed-off-by: Felix Held <felix-coreboot@felixheld.de>
Change-Id: I5208ceeec17051e7849263a4caa0838efd59c044
Reviewed-on: https://review.coreboot.org/c/coreboot/+/82608
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Matt DeVillier <matt.devillier@amd.corp-partner.google.com>
Reviewed-by: Elyes Haouas <ehaouas@noos.fr>

src/mainboard/amd/birman/display_card_type.h

@@ -3,6 +3,8 @@
 #ifndef MAINBOARD_DISPLAY_CARD_TYPE_H
 #define MAINBOARD_DISPLAY_CARD_TYPE_H
 
+#include <types.h>
+
 uint8_t get_ddi1_type(void);
 
 #endif /* MAINBOARD_DISPLAY_CARD_TYPE_H */