[service-ng] Bump base

git shortlog 79455911..f7aabf74e

andyzh (2):
      [service ng]resize loop file if max_disk changed
      Merge "[service ng]resize loop file if max_disk changed"

felixhoo (5):
      Use thread pool to run stop_instances.
      Merge "Use thread pool to run stop_instances."
      Add timeout for query instance status.
      Merge "Add timeout for query instance status."
      [service-ng] Refactor start_instances

Change-Id: I1504fc25beb5a38b67c8bca510024ce6a963a0dc