In preparation for adding another coco build target, relieve
drivers/virt/Makefile of the responsibility to track new compilation
unit additions to drivers/virt/coco/, and do the same for
drivers/virt/Kconfig.
Reviewed-by: Kuppuswamy Sathyanarayanan <sathyanarayanan.kuppuswamy@linux.intel.com> Tested-by: Kuppuswamy Sathyanarayanan <sathyanarayanan.kuppuswamy@linux.intel.com> Reviewed-by: Tom Lendacky <thomas.lendacky@amd.com> Signed-off-by: Dan Williams <dan.j.williams@intel.com>