brcm2708: update 3.10 patches with raspberrypi/rpi-3.10.y of 27 Apr. 2014

Update the 3.10 rasperry patches by rebasing raspberry/rpi-3.10-y
against linux-stable/v3.10.49.

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

git-svn-id: svn://svn.openwrt.org/openwrt/trunk@42678 3c298f89-4303-0410-b956-a3cf2f4a3e73
kernel: add missing CONFIG_BACKLIGHT_GPIO to 3.14

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

git-svn-id: svn://svn.openwrt.org/openwrt/trunk@42679 3c298f89-4303-0410-b956-a3cf2f4a3e73
brcm2708: add 3.14 support

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

git-svn-id: svn://svn.openwrt.org/openwrt/trunk@42680 3c298f89-4303-0410-b956-a3cf2f4a3e73
brcm2708: switch to 3.14

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

git-svn-id: svn://svn.openwrt.org/openwrt/trunk@42681 3c298f89-4303-0410-b956-a3cf2f4a3e73