tests/amdgpu/vcn: add unified queue support in vcn4
add vcn4 unified queue support in enc/dec tests. │ │ Signed-off-by: Ruijing Dong ruijing.dong@amd.com
add vcn4 unified queue support in enc/dec tests. │ │ Signed-off-by: Ruijing Dong ruijing.dong@amd.com