ASoC: amd: ACP needs to be powered off in BIOS.

Removed this logic because It is BIOS which needs to
power off the ACP power domian through ACP_PGFSM_CTRL
register when you De-initialize ACP Engine.

Signed-off-by: Ravulapati Vishnu vardhan rao <Vishnuvardhanrao.Ravulapati@amd.com>
Link: https://lore.kernel.org/r/1581935964-15059-1-git-send-email-Vishnuvardhanrao.Ravulapati@amd.com
Signed-off-by: Mark Brown <broonie@kernel.org>