Merge branch vanilla into gms

* ssh://ch-git3.arimacomm.com.tw:29418/kernel/msm-4.9:
  modify backlight range to 1-4095 from 0-255 for commands.
  Modify sound card dtsi for can not charging issue.

Change-Id: I567302c417cea9f940c59d3ff50cd3af9265977b