[automerger skipped] Disable prebuilts when building with clang coverage am: f372ce1415 -s ours

am skip reason: Merged-In I9731400acfade95b3eab8f2d99fddb4cf856aa91 with SHA-1 4a71082ecf is already in history

Original change: https://googleplex-android-review.googlesource.com/c/platform/build/+/18601940

Change-Id: I1cb78ddd4432f45dd14e5bcd703daa04554b9a8d
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>