on stock android, pthread_cancel and phtread_setcancelstate doesn't exist

Change-Id: Icbe281a301004ae2bcda4821a50fb4a41088e85d
Changes in rk30hack
This works on rk3188 based devices too so rename it to rk3xhack.
Change-Id: Ia3d9d52d99205057f8bece735a938986491b7522
Merge remote branch 'omni/android-4.4' into android-4.4