Hide GPL headers, add license_text, rest is Apache am: d1d7e669a6 am: 1c515944de am: 4e9fb855e0 Original change: https://android-review.googlesource.com/c/platform/system/memory/libion/+/1743733 Change-Id: I326708b538a462ee0b654640f4930ba5cc4019a9