radeonsi: add sampler view BOs to the BO list last
radeonsi: add sampler view BOs to the BO list last

If si_sampler_view_add_buffer ends up flushing, then the code
in begin_new_cs would previously have added the buffer(s) for
whatever was previously bound to that slot. Now it would add only
the new buffer.

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

metora/MesaGLSLCompiler,metora/MesaGLSLCompiler,metora/MesaGLSLCompiler