Use offmode charging blobs from M7

* Use offmode charging blobs from m7 (m7wlv OTA 5.28.605.2) to enable
  charging images support
* Shrink charging images from m7 (1080px width) proportionally for ACE
  (480px width).

Change-Id: I04fcbc7f1ef81b7c8f7712bb85ac7452733124c1