i965/fs: Apply conditional mod specially to split MAD/LRP.

Otherwise we'll apply the conditional mod to only one of SIMD8
instructions and trigger an assertion.

NoDDClr/NoDDChk have the same problem but we never apply those to these
instructions, so I'm leaving them for a later time.

Reviewed-by: Kenneth Graunke <kenneth@whitecape.org>
1 file changed