ASoC: msm: qdsp6v2: Use the correct waitqueue name

The change to add DSP error logging is using older names for the
waitqueue and flag.  This change is correcting them, othwerwise
in case of the memory map/unamp error, the command will time out.

CRs-fixed: 696784
Change-Id: Iada0ea73cf1571c85a696beae7f49689add40f50
Signed-off-by: Damir Didjusto <damird@codeaurora.org>