gf_cpu.c: fix pclmul detection and add portable cpuid feature bit defs
gf_cpu.c: fix pclmul detection and add portable cpuid feature bit defs

Correct invalid check for pclmul support. Was checking SSE3 (1 << 0) vs. PCLMUL (1 << 1).

Fixes: http://tracker.ceph.com/issues/18092
Signed-off-by: John Coyle <041e4f137e6118fa522bf17ce611874c00389a69@gmail.com>

ceph/gf-complete,ceph/gf-complete,ceph/gf-complete