radeon/video: config encode stacked frame number based on HW
radeon/video: config encode stacked frame number based on HW

since VCE 3.0 with dual instances, we need stack frames for them.

Signed-off-by: Leo Liu <2cc5244297c0b82e7ea531cc4a868153602775b7@amd.com>
Acked-by: Alex Deucher <08dc22c6156113f2deff178e35e3ed9b24d6af9e@amd.com>
Reviewed-by: Christian König <c7ea837d7a46effe4232b086213468b8b31643bf@amd.com>

metora/MesaGLSLCompiler,metora/MesaGLSLCompiler,metora/MesaGLSLCompiler