brcm47xx: switch to kernel 3.10.4

This uses a new switch driver.
The old ADMTEK Adm6996 switch is not supported any more.

Signed-off-by: Hauke Mehrtens <hauke@hauke-m.de>


git-svn-id: svn://svn.openwrt.org/openwrt/trunk@37650 3c298f89-4303-0410-b956-a3cf2f4a3e73