Fixed a bug in fxp_mdi_write - a hex number was missing a preceding 0x
and this was causing the routine to not wait for a PHY write to complete.
Added support for link0, link1, and link2 flags to toggle auto-
negotiation, 10/100, and half/full duplex:
link0 disable auto-negotiation
When set, these flags then have meaning:
-link1 10Mbps
link1 100Mbps
-link2 half duplex
link2 full duplex
...needs a manual page.