Merge "Add some comments to the field "third_party.identifier.type" in...

Merge "Add some comments to the field "third_party.identifier.type" in METADATA files." into main am: 20e7d0fe am: cf64619c

Original change: https://android-review.googlesource.com/c/platform/build/+/3020059



Change-Id: Idbf4643d43677c3781e32c569c8d3d50c8422276
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>