hash: reverse the operand order to crc32

hash: reverse the operand order to crc32

Checkin

a132a9cf2bcd440a974b9d3f5c44ba30b2c895a1 hash: use intrinsic

changed the rte_hash_crc.h from using the crc32 instruction via inline
assembly to using an intrinsic.  The intrinsic should allow for better
compiler performance, but the change did not account for the fact that
the inline assembly being in AT&T syntax used the opposite operand
order of the intrinsic.

This turns out to not matter for correctness, because the CRC32
operation is commutative.  However, it could potentially matter for
performance, because the loop is more efficient with the moving
pointer in the source operand and the accumulation in the destination
operand.

This was discovered by Jan Beulich when looking at the equivalent code
in the Linux kernel.

Signed-off-by: H. Peter Anvin <hpa@linux.intel.com>
Reported-by: Jan Beulich <jbeulich@suse.com>
Reported-by: Pashupati Kumar <kumarp@brocade.com>
Acked-by: Thomas Monjalon <thomas.monjalon@6wind.com>