ASoC: qdsp6 : fix DAP params length in adm dolby set params call

During adm set param call for DAP params, send correct buffer length
to dsp, so DAP module doesnt look for parameters after valid length

Change-Id: I5c5c2f433f9c4913ad927d632d7981891c5b4e80
Signed-off-by: Jitendra Singh Naruka <jnaruk@codeaurora.org>