radv: don't advertise transfer props unless we can do anything else

radv: don't advertise transfer props unless we can do anything else

There is no reason to advertise transfer ability for formats we can't
use for anything else. This stops some CTS tests hitting internal
error for 64-bit types when they see the transfer flags.

Reviewed-by: Bas Nieuwenhuizen <bas@basnieuwenhuizen.nl>
Signed-off-by: Dave Airlie <airlied@redhat.com>