A870 kernel - Make it 4.2 possible

I tried some ways, but none of them seem to compatible with us. Those pantech sourcecode is easy to track but not similar with any device out there. A870 kernel seem to be a fork of A8064AAAAANLYA1213507. Lets say it the begin of A870 kernel, now we try to merge it with jb_2.5 branchs (or A8064 tags)
A8064AAAAANLYA1213507
First I make a add support patch for A870 on A8064AAAAANLYA1213507 by merge -s theirs (A870) into A8064AAAAANLYA1213507.
then apply that patch into a common tag between jb_vanilla & A8064AAAAANLYA1213507 which is A8064AAAAANLYA1313. There are rejects then we need to fix it before going futher.