- In rlphy_service() for the MII_TICK case don't bother to check whether

- In rlphy_service() for the MII_TICK case don't bother to check whether
  the currently selected media is of type IFM_AUTO as auto-negotiation
  doesn't need to be kicked anyway.
- In rlphy_status() just use if_dname instead of determining the name
  of the parent NIC via device_get_name(device_get_parent(sc->mii_dev)).
- Use mii_phy_add_media() instead of mii_add_media() so the latter can
  be eventually retired.
- Take advantage of mii_phy_setmedia().
- Fix some whitespace nits and remove commented out code that just can't
  be used with RealTek PHYs.

MFC after:	2 weeks