asoc: codecs: bolero: Add HPH power modes on bolero

Two power modes are supported on bolero digital.
Add support to set required power mode using
mixer control and enable runtime during powerup
sequence.

Change-Id: I4c5a7560984d60745ac98848f1eec1d1f8485323
Signed-off-by: Laxminath Kasam <lkasam@codeaurora.org>