iwlwifi: bump FW API to 67 for AX devices

Start supporting API version 67 for AX devices.
Signed-off-by: NLuca Coelho <luciano.coelho@intel.com>
Link: https://lore.kernel.org/r/iwlwifi.20211024181719.3c0af5832d23.I7c18858604b72bc15cf2047a91531e4aa7c0527a@changeidSigned-off-by: NLuca Coelho <luciano.coelho@intel.com>

drivers/net/wireless/intel/iwlwifi/cfg/22000.c

@@ -9,7 +9,7 @@
 #include "iwl-prph.h"
 
 /* Highest firmware API version supported */
-#define IWL_22000_UCODE_API_MAX	66
+#define IWL_22000_UCODE_API_MAX	67
 
 /* Lowest firmware API version supported */
 #define IWL_22000_UCODE_API_MIN	39