gogen: CMPPD and CPMSD encode the condition as an immediate operand
gogen: CMPPD and CPMSD encode the condition as an immediate operand

Same story for SSE2 and float64 than what happens for the SSE float32
instructions.

Signed-off-by: Damien Lespiau <64bd3cb94f359c1a3ce68dae5e26b40578526277@intel.com>

dlespiau/x86db,dlespiau/x86db