Fix multiple error on ESS switch port define.
- Fix wrong switch CPU and WAN bmp define. (many times wan port are
actually set in lan mask and lan port in wan mask)
- Renumber phyinfo port, use port_id instead of phy_address as it
doesn't make sense using that for port enumeration
- Drop additional port for devices that have them not connected.
Signed-off-by: Christian Marangi <ansuelsmth@gmail.com>