Merge "docs: add a clang_fortify_anatomy doc" am: df8ff491bb

Original change: https://android-review.googlesource.com/c/platform/bionic/+/2117839

Change-Id: Ie02d7f911d3d28bf67320c692160b4f11bb1153a
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>