ASoC: wcd9xxx-mbhc: Change the INVALID range

Some headset with high impedance on microphone is not detected.
Because their mic voltages are in INVALID range.
It can be resolved with changing the range, if not support EU detection.

Bug: 23868088
Change-Id: Ia1ff6d0ce07b213f8ad89b9dc292eab7d7aa3307
Signed-off-by: jimin.oh <jimin.oh@lge.com>