Fix simulcast svc controller to reuse dropped frame configuration, same as full svc and k-svc controllers do. This fuzzer reminded the issue was still there. Bug: webrtc:11999 Change-Id: I74156bd743124723562e99deb48de5b5018a81d0 Reviewed-on: https://webrtc-review.googlesource.com/c/src/+/212281 Reviewed-by: Erik Språng <sprang@webrtc.org> Commit-Queue: Danil Chapovalov <danilchap@webrtc.org> Cr-Commit-Position: refs/heads/master@{#33568}