hash: fix crc32 error when built for i686 and run in x86_64
hash: fix crc32 error when built for i686 and run in x86_64

When compile target i686 in platform x86_64, the stub function will
be called, and return zero.

Fixes: 12fa4a00788d ("hash: fix unsupported crc instruction in i686 platform")

Signed-off-by: Michael Qiu <f0309ca2255ec42822adda7c4b8f366ca4bb5572@intel.com>
Acked-by: Thomas Monjalon <ee2fa8b2681c737f775687e475dcbf2028a412f1@6wind.com>

phermansson/dpdk,phermansson/dpdk,phermansson/dpdk,phermansson/dpdk