Update kernel to build 6015897
am: d4f85a8d03

Change-Id: Ia7ae745ccffa58b02837b3712b65e28bcfb9b266
tree: 3507f3b6b6d666a23b1006dcae0d8e7f799965f9
  1. 4.19-arm64/
  2. 4.19-x86_64/
  3. scripts/
  4. uapi/
  5. Android.bp
  6. OWNERS
  7. TEST_MAPPING