wifi: iwlwifi: bump FW API to 91 for BZ/SC devices

Start supporting API version 91 for new devices.

Signed-off-by: Miri Korenblit <miriam.rachel.korenblit@intel.com>
Link: https://msgid.link/20240512072733.27c00099e8b7.I99b4f24bba073414dd04a6e04a359c7fbba52990@changeid


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