* when someone installed Intel video drivers on an AMD system, the
decoder will select the Intel VA-API decoding driver and yuzu will
crash due to incorrect driver selection; the fix will check if the
currently about-to-use driver is loaded in the kernel
* when using NVIDIA driver on Linux with a ffmpeg that does not have
CUDA capability enabled, the decoder will crash; the fix simply
making the decoder prefers the VDPAU driver over CUDA on Linux