mb/amd/onyx/dsdt: include acpi/dsdt_top.asl

acpi/dsdt_top.asl provides some common functionality and needs to be
included at the beginning of the DSDT.

Signed-off-by: Felix Held <felix-coreboot@felixheld.de>
Change-Id: Ia7b5ddce110b35ed65c6df6cc42995abe93a3ffc
Reviewed-on: https://review.coreboot.org/c/coreboot/+/79466
Reviewed-by: Martin L Roth <gaumless@gmail.com>
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Varshit Pandya <pandyavarshit@gmail.com>

src/mainboard/amd/onyx/dsdt.asl

@@ -11,6 +11,7 @@ DefinitionBlock (
 	0x00010001	/* OEM Revision */
 )
 {	/* Start of ASL file */
+	#include <acpi/dsdt_top.asl>
 
 	#include <soc.asl>
 } /* End of ASL file */