ASoC: msm: qdsp6v2: Fix APR de-register issues during session close

APR de-register should get called for all open streams. The
change handles a case where de-register is not called.

CRs-fixed: 584533
Change-Id: Ie1971f0cf73711674f76f3e4b4bdfacdb0852f5e
Signed-off-by: Phani Kumar Uppalapati <phaniu@codeaurora.org>