ASoC: SOF: Intel: mtl: Access MTL_HFPWRCTL from HDA_DSP_BAR

The Host Power Management/Clock Control (ULP) Registers in
the HDA BAR shadow the values of the same registers in the DSP BAR,
so let's modify the latter - as done already for other accesses.

Signed-off-by: Yong Zhi <yong.zhi@intel.com>
Reviewed-by: Ranjani Sridharan <ranjani.sridharan@linux.intel.com>
Reviewed-by: Pierre-Louis Bossart <pierre-louis.bossart@linux.intel.com>
Reviewed-by: Bard Liao <yung-chuan.liao@linux.intel.com>
Signed-off-by: Peter Ujfalusi <peter.ujfalusi@linux.intel.com>
Link: https://lore.kernel.org/r/20230307095251.3058-1-peter.ujfalusi@linux.intel.com


Signed-off-by: Mark Brown <broonie@kernel.org>