{src/mb,util/autoport}: Use macro for DSDT revision

Change-Id: I5a5f4e7067948c5cc7a715a08f7a5a3e9b391191
Signed-off-by: Elyes HAOUAS <ehaouas@noos.fr>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/45904
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Werner Zeh <werner.zeh@siemens.com>

src/mainboard/lippert/frontrunner-af/dsdt.asl

@@ -5,7 +5,7 @@
 DefinitionBlock (
 	"DSDT.AML",           /* Output filename */
 	"DSDT",                 /* Signature */
-	0x02,		/* DSDT Revision, needs to be 2 for 64bit */
+	ACPI_DSDT_REV_2,
 	OEM_ID,
 	ACPI_TABLE_CREATOR,
 	0x00010001	/* OEM Revision */