kernel: add support for 3.8-rc2

Signed-off-by: Florian Fainelli <florian@openwrt.org>

git-svn-id: svn://svn.openwrt.org/openwrt@35055 3c298f89-4303-0410-b956-a3cf2f4a3e73
[malta] add support for 3.8 kernel

Signed-off-by: Florian Fainelli <florian@openwrt.org>

git-svn-id: svn://svn.openwrt.org/openwrt@35056 3c298f89-4303-0410-b956-a3cf2f4a3e73
[realview] add support for 3.8 kernel

Signed-off-by: Florian Fainelli <florian@openwrt.org>

git-svn-id: svn://svn.openwrt.org/openwrt@35057 3c298f89-4303-0410-b956-a3cf2f4a3e73