Change hardcoded and incorrect number with correct define. This change is a nop, since E1000_FDX_COLLISION_DISTANCE == E1000_HDX_COLLISION_DISTANCE.
Change hardcoded and incorrect number with correct define. This change is a
nop, since E1000_FDX_COLLISION_DISTANCE == E1000_HDX_COLLISION_DISTANCE.

PR:		kern/101000
Submitted by:	Doug Havir

jrobhoward/SCADAbase,jrobhoward/SCADAbase,jrobhoward/SCADAbase,jrobhoward/SCADAbase,jrobhoward/SCADAbase,jrobhoward/SCADAbase,jrobhoward/SCADAbase,jrobhoward/SCADAbase,jrobhoward/SCADAbase,jrobhoward/SCADAbase,jrobhoward/SCADAbase