switch: resetting and enabling vlan write for gigabit switches

This patch makes it possible to reset and enable writing vlans to recent switchs.

This is based on a patch by jcharest and the Broadcom SDK.


git-svn-id: svn://svn.openwrt.org/openwrt@35585 3c298f89-4303-0410-b956-a3cf2f4a3e73
switch: add support for BCM53125


git-svn-id: svn://svn.openwrt.org/openwrt@35586 3c298f89-4303-0410-b956-a3cf2f4a3e73
brcm47xx: configure vlan correctly on some recent devices.


git-svn-id: svn://svn.openwrt.org/openwrt@35587 3c298f89-4303-0410-b956-a3cf2f4a3e73