frontends/va: Report vendor and device ID through VADisplayPCIID
This MR implements a query for the vendor and device ID properties of VAAPI devices through VADisplayPCIID.
It helps to filter devices more accurately in APU+dGPU environment when deriving from the second VAAPI device to Vulkan in FFmpeg.
Signed-off-by: nyanmisaka nst799610810@gmail.com