Documentation: sound: Add property for AQT1000 codec on SDM670

Add required and optional properties for AQT codec.
Also add AQT related propeties for machine driver and PMIC.

CRs-Fixed: 2180664
Change-Id: I5f4163543c81108f50b2747cd004a04c9c4187ee
Signed-off-by: Vatsal Bucha <vbucha@codeaurora.org>