ASoC: topology: Unify all device references

In few places tplg->comp->dev is used, while everywhere else tplg->dev
is being used. Unify those uses towards tplg->dev, as it is being set to
comp->dev during initialization anyway.

Reviewed-by: Guennadi Liakhovetski <guennadi.liakhovetski@linux.intel.com>
Signed-off-by: Amadeusz Sławiński <amadeuszx.slawinski@linux.intel.com>
Reviewed-by: Cezary Rojewski <cezary.rojewski@intel.com>
Link: https://lore.kernel.org/r/20201030145427.3497990-4-amadeuszx.slawinski@linux.intel.com


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