Add METADATA / Licensing info am: 9d1e484920 am: 5f825c7125 am: 4f05db9740 am: ffa5de5237

Original change: https://android-review.googlesource.com/c/platform/external/rust/crates/thiserror-impl/+/1322242

Change-Id: Ia247f96f8629b1616d876797595293358d6de6e9