tgsi: add DFMA to the opcode infer functions.
tgsi: add DFMA to the opcode infer functions.

Signed-off-by: Dave Airlie <f2295d84e358395675bc8031be58672073ae065e@redhat.com>

metora/MesaGLSLCompiler,metora/MesaGLSLCompiler,metora/MesaGLSLCompiler