st/nine: Do not map SUB and ABS to their gallium equivalent.
st/nine: Do not map SUB and ABS to their gallium equivalent.

This is required for gallium SUB and ABS to be removed.

Signed-off-by: Axel Davy <2b6ef604b998fb81662f85c329e4fc020eae8e5d@ens.fr>
Signed-off-by: Marek Olšák <8c7344a1abdb103e79ecfd488098373070c3c70e@amd.com>

metora/MesaGLSLCompiler,metora/MesaGLSLCompiler,metora/MesaGLSLCompiler