superio/common: Fix types in printf

Found by Coverity Scan #1405310

Change-Id: I53146e7fc402500effc63ce276ecfce4d72a4f7f
Signed-off-by: Patrick Georgi <pgeorgi@google.com>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/35433
Reviewed-by: Felix Held <felix-coreboot@felixheld.de>
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
diff --git a/src/superio/common/ssdt.c b/src/superio/common/ssdt.c
index 035f06a..a919aa5 100644
--- a/src/superio/common/ssdt.c
+++ b/src/superio/common/ssdt.c
@@ -127,11 +127,11 @@
 		if (!res || !res->base || !res->size)
 			continue;
 
-		snprintf(name, sizeof(name), "IO%XB", i);
+		snprintf(name, sizeof(name), "IO%zXB", i);
 		name[4] = '\0';
 		acpigen_write_name_integer(name, res->base);
 
-		snprintf(name, sizeof(name), "IO%XS", i);
+		snprintf(name, sizeof(name), "IO%zXS", i);
 		name[4] = '\0';
 		acpigen_write_name_integer(name, res->size);
 	}