Encoding: Add one hook callback function to detect encoding capabilitiy on Haswell

Encoding: Add one hook callback function to detect encoding capabilitiy on Haswell

Some Haswell machine doesn't support the encoding. So it should be disabled.
Otherwise the driver can't report the supported capability correctly.

V2->V3:Based on the Matt Turner's suggestion the __cpuid defined in GCC
cpuid.h is called directly, which is helpful to handle the PIC issue on
32-bit. And unsigned data type is updated to uint32_t.

V1->V2: Minor update based on comment from Gwenole Beauchesne. For example:
use the bool tye and remove the hardcoded value

Signed-off-by: Zhao Yakui <yakui.zhao@intel.com>