Merge "Load a list of plugins from vendor/google_clockwork" into main am: c9ef6f71

Original change: https://android-review.googlesource.com/c/platform/build/soong/+/2798384



Change-Id: Ib512090bd4a01cd3699eccb5706db0b9876fe99a
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>