r600g: Add double precision FMA ops
r600g: Add double precision FMA ops

Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=96782
Fixes: 54c4d525da7c7fc1e103d7a3e6db015abb132d5d ("r600g: Enable FMA on chips that support it")

Signed-off-by: Jan Vesely <ed664c4bb5cadd95cb7521d1190a56e280fa6954@rutgers.edu>
Tested-by: James Harvey <bab907bafe0121b88c465a07fe9154955b382607@gmail.com>
Signed-off-by: Marek Olšák <8c7344a1abdb103e79ecfd488098373070c3c70e@amd.com>

metora/MesaGLSLCompiler,metora/MesaGLSLCompiler,metora/MesaGLSLCompiler