ASoC: SOF: return -ENOTSUPP if D0I3 is not supported

No set_power_state ops means that the platform doesn't support D0i3,
return -ENOTSUPP for the case.

Signed-off-by: Keyon Jie <yang.jie@linux.intel.com>
Signed-off-by: Pierre-Louis Bossart <pierre-louis.bossart@linux.intel.com>
Link: https://lore.kernel.org/r/20191025224122.7718-25-pierre-louis.bossart@linux.intel.com


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