ASoC: Intel: avs: Prefix SKL/APL-specific members

Prefix members that are platform-specific with 'avs_' to improve code
cohesiveness and reduce the chance for naming-conflics with other
drivers.

Reviewed-by: Amadeusz Sławiński <amadeuszx.slawinski@linux.intel.com>
Signed-off-by: Cezary Rojewski <cezary.rojewski@intel.com>
Link: https://msgid.link/r/20240220115035.770402-4-cezary.rojewski@intel.com


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