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

Merge "Load a list of plugins from vendor/google_clockwork" into main am: c9ef6f71 am: 3c5a1e9b am: fc4e7397

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



Change-Id: I978d32319cd4c1c9d01b1bff7880e48a7a866080
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>