wifi: iwlwifi: bump FW API to 78 for AX devices

Start supporting API version 78 for AX devices.
Signed-off-by: Gregory Greenman <gregory.greenman@intel.com>
Link: https://lore.kernel.org/r/20230417113648.5a4dcbf5a2c1.I125808566fe892ee0865e392bf1b1872daafe8ad@changeidSigned-off-by: Johannes Berg <johannes.berg@intel.com>

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

@@ -10,7 +10,7 @@
 #include "fw/api/txq.h"
 
 /* Highest firmware API version supported */
-#define IWL_22000_UCODE_API_MAX	77
+#define IWL_22000_UCODE_API_MAX	78
 
 /* Lowest firmware API version supported */
 #define IWL_22000_UCODE_API_MIN	39