[2/3] Kernel: Fix dock function key support. Based on patches by jruesga from CyanogenMod sources. Needs also tf101 device and frameworks/base parts.

Change-Id: I9f7969e783fe07ee6a5975345e3982d52d7f5c4f
Merge "[2/3] Kernel: Fix dock function key support. Based on patches by jruesga from CyanogenMod sources. Needs also tf101 device and frameworks/base parts." into android-4.4