[PATCH] amd8111e use standard CRC lib

I noticed this driver (and several others) reinvent their own copy of the
existing CRC library. Don't have the hardware, but tested by extracting
code and comparing result.

Signed-off-by: Stephen Hemminger <shemminger@osdl.org>
Signed-off-by: Jeff Garzik <jeff@garzik.org>