ASoC: msm_sdw: Update VI sense sample rate to 8k

SR was changed from 8kHz to 48kHz due to capturing
of garbled VI sense data as per HW team suggestion.
With new speaker protection algo in dsp, 8kHz is
expected and earlier issue with 8kHz is not seen.
Reverting the SR change back to 8kHz.

CRs-Fixed: 2364486
Change-Id: I29947f87f182fc1de7a7002fcee0899b0f622103
Signed-off-by: Laxminath Kasam <lkasam@codeaurora.org>