ASoC: msm: qdsp6v2: DAP: Update check to validate data length

A big negative data length value can bypass the current check,
update the condition to ensure that only valid data length is used
to copy the params.

CRs-Fixed: 1041130
Change-Id: I6e1a58e901e4c042acfb0ab0a6223dec2949aefe
Signed-off-by: Ashish Jain <ashishj@codeaurora.org>