hal: reroute active capture usecases which share same backend

During device switch, all active capture usecases need to be
switched to new sound device if they all share same backend.
This is not happening because of an improper check of capture
usecase's device against output backend devices. Correct the
check to compare against input backend devices.

Change-Id: Iaf43c30b091f78c2ffb8b2740f241f2edfbe5a08
CRs-fixed: 873528