hal: Update active input stream when voip input is closed

In recording and VoIP both active scenario, when voip input
is closed, active input stream would set to NULL. Therefore,
as active input stream is NULL, audio recording input device
is wrong to select after closing voip call.

Fix this by updating proper active input stream when voip input
is closed.

CRs-Fixed: 2035512
Change-Id: Ie8be5d6d9de65249122de497d8689ad4c78698e5