ASoC: hdac_hdmi: Use i915 component framework for PM

Use the component framework to keep the display on till the
playback in progress.

Signed-off-by: Subhransu S. Prusty <subhransu.s.prusty@intel.com>
Signed-off-by: Vinod Koul <vinod.koul@intel.com>
Signed-off-by: Mark Brown <broonie@kernel.org>