[automerger skipped] Mark Android R (rvc-dev-plus-aosp-without-vendor@6692709) as merged am: 88b284f567 -s ours am: f1da56da3e -s ours

am skip reason: Change-Id Ia9cf54801441ec60f51bfdfb89fa5d0846ff6bbc with SHA-1 a6ee52c3a9 is in history

Original change: https://googleplex-android-review.googlesource.com/c/platform/external/rust/crates/once_cell/+/12469819

Change-Id: I9a6a41e6d4dee4aebb6eb30b6c416d7a9f69fbc0