ASoC: wcd: update codec driver to make sure the Q6 is up

Before accessing the AHB address related to digital codec
residing in ULT audio, need to make sure the Q6 will be up
and enable all the necessary clocks needed to access the
digital codec to avoid fetch abort.

Change-Id: Idba81a33aa0bfe817b36ec00ff105fdee1ac7e46
Signed-off-by: Santosh Mardi <gsantosh@codeaurora.org>