multiqueue: Handle use-interleave latency live pipelines

Due to the dynamic nature of multiqueue, whe use-interleave is used we can't report a maximum tolerated latency (when queried) since it is calculated dynamically.

When in such live pipelines, we need to make sure multiqueue can handle the lowest global latency (provided by this event). Failure to do that would result in not providing enough buffering for a realtime pipeline.

Fixes #1732 (closed)