src: Include <stdint.h> instead of <inttypes.h>

The <inttypes.h> header currently does nothing but include the
definitions from <stdint.h>, so let's #include that directly instead.

Change-Id: I9d83ad37d0d7300a093001596ce3f0b3830c5701
Signed-off-by: Jacob Garber <jgarber1@ualberta.ca>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/34800
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Nico Huber <nico.h@gmx.de>

src/drivers/intel/fsp2_0/hand_off_block.c

@@ -16,7 +16,7 @@
 #include <console/console.h>
 #include <fsp/api.h>
 #include <fsp/util.h>
-#include <inttypes.h>
+#include <stdint.h>
 #include <string.h>
 
 #define HOB_HEADER_LEN		8