ASoC: WCD9310: Use dedicated trigger for insertion and low power removal

For insertion / low power removal detection both mic line schmitt
triger and HPH schmitt triger were used. This was causing fake
interrupts being generated.

Add logic to use mic Bias schmitt trigger only for low power removal
detection and HPH schmitt trigger only for insertion detection.

CRs-Fixed: 306965
Change-Id: Iaf3993e85f3f27cc275fbed445005f214905ae47
Signed-off-by: Bhalchandra Gajare <gajare@codeaurora.org>