ASoC: topology: Pass correct pointer instead of casting

Instead of passing address of structure, the containing structure is
cast to target structure. While it works - the expected structure is the
first field of containing one - it is bad practice, fix this by passing
pointer to structure field.

Reviewed-by: Cezary Rojewski <cezary.rojewski@intel.com>
Reviewed-by: Ranjani Sridharan <ranjani.sridharan@linux.intel.com>
Signed-off-by: Amadeusz Sławiński <amadeuszx.slawinski@linux.intel.com>
Link: https://lore.kernel.org/r/20230127231111.937721-8-amadeuszx.slawinski@linux.intel.com


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