Android 7.1.2 Release 15 (NKG47L)
Merge cherrypicks of [2278225, 2279882, 2279862, 2278226, 2277057, 2279863, 2278227] into nyc-mr2-pixel-monthly-release

Change-Id: Ib35587a54ca8708954f648104c288dd005fe78d6
tree: 5fd51837240ff6a4ec62674d9bf0355b369f7af1
  1. Image.gz-dtb
  2. Image.gz-dtb-eas