[automerger skipped] Mark Android R (rvc-dev-plus-aosp-without-vendor@6692709) as merged am: 3b02e5998e -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: I695f47737230741ab3fc977bdcd0010b0f85bba5