msm: audio: qdsp6v2: Fix command sequence issue in Non-tunnel player

The CMD_CLOSE and CMD_UNMAP needs to be sequentially sent to dsp.
Avoid sending CMD_UNMAP if CMD_CLOSE is not sent.

CRs-Fixed: 485051
Change-Id: Ic6dd9775b0aea218874161b8a44dc0286608616c
Signed-off-by: Asish Bhattacharya <asishb@codeaurora.org>