wifi: iwlwifi: move WTAS macro to api file

regulatory header file should not be included in API file,
as API defination should be independent.

Signed-off-by: Anjaneyulu <pagadala.yesu.anjaneyulu@intel.com>
Signed-off-by: Miri Korenblit <miriam.rachel.korenblit@intel.com>
Link: https://msgid.link/20240415114847.61c9163859a7.Id29a86566ff313ab8e85aa1007f841e95a67d6b7@changeid


Signed-off-by: Johannes Berg <johannes.berg@intel.com>