audio: asoc: wcd9310: fix headset mic recording fail.

Headset mic fail in case of inserting headset while dmic is recording.
Keep LDO_H always on while headset is inserted.

Bug: 11506684
Change-Id: I8516d537d2c72d6f71236219e5d3e610e25ecf24
Signed-off-by: sam_chen <sam_chen@asus.com>