ramips: improve F5D8235 V1 support

This fixes the partition name for the firmware splitter, the cfi
address and adds the mtd-eeprom address for wmac. It adds additional
LEDs and make use of them in diag.sh and 01_leds.

Please note that the ":blue:wired" LED is used because the
":blue:router" behaviour is unpredictable for failsafe indication. The
issue with the router LED is that you have two states only.
"off" is steady on and "on" blinks. Therefore the wired LED is more
suitable.

Furthermore it reuses the correct switch configuration definition to
reflect the device ports and numbering. Additionally fixes the issue
that the default configuration is not applied as no port 6 exists on
this device.

Signed-off-by: Tobias Wolf <github-NTEO@vplace.de>