ASoC: wcd9320: Fix the VI feedback enable/disable sequence

Speaker protection is supported only in slimbus mode.
Voltage and current data is captured using TX11/TX12
ports in slimbus mode.For I2S mode Voltage and current
data can be captured using TX9 and TX10 ports.
Quad mic recording usecase uses TX9/TX10 ports, hence
in slimbus mode TX9/TX10 ports shouldn't be used for
speaker protection.Change removes the enable/disable sequence.

CRs-Fixed: 561097
Change-Id: I9642e703d3ab884ae1260569020853b71e26709d
Signed-off-by: Gopikrishnaiah Anandan <agopik@codeaurora.org>