wifi: iwlwifi: remember if the UATS table was read successfully

This will allow to read the table once, and not any time the command is
sent. The actual use of this will be in a later patch.

Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
Signed-off-by: Miri Korenblit <miriam.rachel.korenblit@intel.com>
Link: https://patch.msgid.link/20250212073923.61801b78a2cb.I710a766888f370a75b47116fec29d41c106b13ed@changeid


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