ASoC: WCD9310: Don't change unnecessary CFILT bits

Only bits 6, 5, and 4 of the CFILT control registers
need to be updated when setting up the microphone
voltage measurement to determine if an inserted
headset has a microphone.

Signed-off-by: Brad Rubin <brubin@codeaurora.org>
Signed-off-by: Peter Lohmann <plohmann@codeaurora.org>
1 file changed