Add make prebuilt_build_tool am: 99e91386fc

Original change: https://android-review.googlesource.com/c/platform/prebuilts/build-tools/+/2974375

Change-Id: Iff7fb308aad917fe2df46371447f2325d86c5b19
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>