linux-mainline 3.8: add patches for IIO and PWM sysfs nodes

Signed-off-by: Koen Kooi <koen@dominion.thruhere.net>
linux-mainline 3.8: attempt to fix AVI infoframes with HDMI on beagleboneblack

Signed-off-by: Koen Kooi <koen@dominion.thruhere.net>