ACPI: Add common acpi_fill_gnvs()

Change-Id: I515e830808a95eee3ce72b16fd26da6ec79dac85
Signed-off-by: Kyösti Mälkki <kyosti.malkki@gmail.com>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/48718
Reviewed-by: Lance Zhao
Reviewed-by: Angel Pons <th3fanbus@gmail.com>
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>

src/acpi/acpi.c

@@ -1472,6 +1472,9 @@ unsigned long write_acpi_tables(unsigned long start)
 		current += sizeof(acpi_header_t);
 
 		acpigen_set_current((char *) current);
+
+		acpi_fill_gnvs();
+
 		for (dev = all_devices; dev; dev = dev->next)
 			if (dev->ops && dev->ops->acpi_inject_dsdt)
 				dev->ops->acpi_inject_dsdt(dev);