Merge "Only enable zucchini if configuration file exists" am: 7b53ae67

Original change: https://android-review.googlesource.com/c/platform/build/+/2085423



Change-Id: I02323ad00549c82fa8818e05f6dad47a1664fe53
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>