Revert "Put back dalvik.vm.dexopt-data-only=1"

This reverts commit 3455d7837c951e297335295a36cd2202a9f629f3.
fstab.qcom: Updated fstab
* Moved system to top of fstab list because it contains file system check utility
* we are not using /cache partition so move to bottom of fstab list to make mounted last partition
* decreased the zram size from 192 mb to 96 mb(optimal value) to make it system less laggy (ı suspect that so much zram is causing the lag)
Completely removed LPA
* it has too much problems
lpm: Updated offmode charging binaries
* from SPH-M840
Enable IPv6 tethering
* our kernel is already supporting this