[automerger skipped] Mark Android R (rvc-dev-plus-aosp-without-vendor@6692709) as merged am: 3b02e5998e -s ours am: 7672c2aaef -s ours am: d9259ebc11 -s ours

am skip reason: Change-Id I28748bb611dddd448cd48d2e404efb4e5adbf07b with SHA-1 7e6b008795 is in history

Original change: https://googleplex-android-review.googlesource.com/c/platform/external/llvm/+/12469932

Change-Id: Id210518a4bc4bdac2158008f1d6ed9226c976fcb