Upgrade (most of) xt_qtaguid to AOSP 4.3 version (fix data transfer arro...

This is a simple upgrade of the xt_qtaguid files to the latest (I think) AOSP version, including all previous backports and some adaptations for our old kernel. 
It fixes the missing data arrows in 4.3 JB and hopefully, also some data connectivity issues. 

The main change is the new iface_stat_fmt proc file which is probably used by new Android in addition to the old iface_stat_all. I did not test the kernel on older Android versions, but since the old file is still there, I guess it should still work.