radeonsi: load streamout buffer descriptors before use (v2)
radeonsi: load streamout buffer descriptors before use (v2)

v2: inline the code and remove the conditional that's a no-op now

Reviewed-by: Nicolai Hähnle <0d0be6cf5ad662651be2dc5dfd44aa2b09d4c1cc@amd.com>

metora/MesaGLSLCompiler,metora/MesaGLSLCompiler,metora/MesaGLSLCompiler