Stagefright: Delay the force-shutdown of node after 10 seconds

since the node can take more than (default) 3 seconds to transition
to Exec --> Idle -> Loaded.
In the event of freeing node before the component has transitioned
to loaded, there may be race-conditions trying to invoke methods
on a non-existant component and bad things can happen.
Increase timeout to 10 seconds till the checks are in place.

Change-Id: I97f698422dfe99b47b3bafb605b642a247b44110
CRs-Fixed: 884165