ASoC: Intel: avs: Provide support for fallback topology

HDA and HDMI devices are simple enough that in case of user not having
topology tailored to their device, they can use fallback topology.

Signed-off-by: Amadeusz Sławiński <amadeuszx.slawinski@linux.intel.com>
Link: https://lore.kernel.org/r/20230905093147.1960675-1-amadeuszx.slawinski@linux.intel.com


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