brcm47xx: fix switch port order for Netgear WN2500RP V1

brcm47xx: fix switch port order for Netgear WN2500RP V1

The Netgear WN2500RP V1 switch0 already works for LAN
however the port order for the LAN ports is inverted. Correct
physical port order watched from the back of the device is:
4 / 3 / 2 / 1
WAN port is absent on this device and therefore removed
from switch config.

Signed-off-by: Walter Sonius <walterav1984@gmail.com>
[move block to maintain alphabetic sorting]
Signed-off-by: Adrian Schmutzler <freifunk@adrianschmutzler.de>
(cherry picked from commit 098cbc68ee23db589ed6f0d081fe26cc385462f2)