iwlwifi: api: fix u32 -> __le32

Even if we don't currently use this value, the firmware is putting
whatever it's putting there as __le32, so fix that.
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
Link: https://lore.kernel.org/r/iwlwifi.20200930191738.4207116e9c7a.I6d9aa1371f9a8b4e5565236d23255b5c05c70bb3@changeidSigned-off-by: Luca Coelho <luciano.coelho@intel.com>

drivers/net/wireless/intel/iwlwifi/fw/api/alive.h

@@ -129,7 +129,7 @@ struct iwl_umac_alive {
 } __packed; /* UMAC_ALIVE_DATA_API_S_VER_2 */
 
 struct iwl_sku_id {
-	u32 data[3];
+	__le32 data[3];
 } __packed; /* SKU_ID_API_S_VER_1 */
 
 struct iwl_alive_ntf_v3 {