brcm63xx: fix DTS LEDs and buttons

- A4001N/A4001N1: fix swapped green and red LEDs
- CVG834G: add missing LED
- RTA1320: reorder LEDs by GPIO#
- V2500V: add missing LEDs and buttons
- WAP-5813n: fix WPS button (GPIO 35)

Signed-off-by: Álvaro Fernández Rojas <noltari@gmail.com>
Signed-off-by: Jonas Gorski <jogo@openwrt.org>

git-svn-id: svn://svn.openwrt.org/openwrt/trunk@44577 3c298f89-4303-0410-b956-a3cf2f4a3e73