[automerger skipped] external/boringssl: Sync to c9a7dd687987666df5910f2b35fdc8c3d1e5ed05. am: b439634923 -s ours

am skip reason: Merged-In Iffd9451788b67d3da80cefbcf8d3d0ffb7d682fd with SHA-1 6d77d67fee is already in history

Original change: https://android-review.googlesource.com/c/platform/external/boringssl/+/2046663

Change-Id: I1ee21e2f328a897085028fe4a4394ab9d7fba847
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>