swr: mark rgb9_e5 as unrenderable
swr: mark rgb9_e5 as unrenderable

The support in swr requires shaders to output the components as UINTs.
This is not how GL or Gallium work, and since this is not a
required-renderable format, just leave it out.

Signed-off-by: Ilia Mirkin <bcbbb7aa705ec3a5fc5824c01a845186c3d62fca@alum.mit.edu>
Reviewed-by: Bruce Cherniak <a5345730962d952f474b19e983398300e1cb5f29@intel.com>

metora/MesaGLSLCompiler,metora/MesaGLSLCompiler,metora/MesaGLSLCompiler