[automerger skipped] Merge "libbinder_ndk: document headers" into sc-dev am:...

[automerger skipped] Merge "libbinder_ndk: document headers" into sc-dev am: d01b8e9a -s ours am: 686b4bbe -s ours

am skip reason: Merged-In I5a83d6eaae9fd7832b322e490ec91f5e4f1005e2 with SHA-1 6a026a21 is already in history

Original change: https://googleplex-android-review.googlesource.com/c/platform/frameworks/native/+/14630601

Change-Id: I57f049e978c5dd32badc01693441776e6abfb07b