#19 mii-tool uses the wrong phy index when watching

[Pelle Johansson]

It seems the SIOCGMIIPHY ioctl in watch_one_xcvr resets the phy index to 0 and thus that port is the one checked for changes instead of the chosen one. Fixed by adding

if (override_phy >= 0)
    mii->phy_id = override_phy;

to the function.

[Mike Frysinger]

this has been fixed here:
https://sourceforge.net/p/net-tools/code/ci/038ed39acb9eb62196809f2dcc2940bedee46cb7