drivers: shs: Add filter flow module param

Add a module param of currently running consistent flows.
This module param will allow a filtered viewed in cases
when shs goes into idle mode and when multiple idle flows
have been created.

Change-Id: I6b9c9b18c30575d2b59dd76814f4b7b2a2953bc0
Acked-by: Raul Martinez <mraul@qti.qualcomm.com>
Signed-off-by: Subash Abhinov Kasiviswanathan <subashab@codeaurora.org>