ASoC: msm8994: Ultrasound and ANC headset support

Ultrasound emitter uses lineout device path. Change enables
lineout device path and ultrasound gpio for ultrasound usecase
and support for Active Noise Cancellation(ANC) headset detection.

Change-Id: Ieccf93117126064f14af04ad394b5b8464f669ed
Signed-off-by: Sudheer Papothi <spapothi@codeaurora.org>