ACPI: Correct asl_compiler_revision value

Change-Id: I91b54b43c8bb5cb17ff86a6d9afa95f265ee49df
Signed-off-by: Elyes HAOUAS <ehaouas@noos.fr>
Reviewed-on: https://review.coreboot.org/c/31431
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Patrick Georgi <pgeorgi@google.com>

src/lib/version.c

@@ -43,3 +43,5 @@ const struct bcd_date coreboot_build_date = {
 	.day = COREBOOT_BUILD_DAY_BCD,
 	.weekday = COREBOOT_BUILD_WEEKDAY_BCD,
 };
+
+const unsigned int asl_revision = ASL_VERSION;