asoc: msm_sdw: Fix KPI issues in speaker device switch

Due to ADSP ready check in every register read/write,
a latency of ~200msec is added in speaker device switch
use cases. Remove this redundant check to reduce the latency.

CRs-Fixed: 2224041
Change-Id: I1422c523b1a8a9619ecd80302934b9cca2e8b8a1
Signed-off-by: Aditya Bavanari <abavanar@codeaurora.org>