iwlwifi: increase max payload of iwl_cmd

This patch increases iwl_cmd payload maximum size from 360 to 640
to fit some of iwl5000 commands as well.
Signed-off-by: Ron Rindjunsky <ron.rindjunsky@intel.com>
Signed-off-by: Tomas Winkler <tomas.winkler@intel.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>

drivers/net/wireless/iwlwifi/iwl-dev.h

@@ -307,6 +307,8 @@ struct iwl_cmd_meta {
 
 } __attribute__ ((packed));
 
+#define IWL_CMD_MAX_PAYLOAD 640
+
 /**
  * struct iwl_cmd
  *
@@ -332,7 +334,7 @@ struct iwl_cmd {
 		struct iwl4965_tx_beacon_cmd tx_beacon;
 		struct iwl4965_rxon_assoc_cmd rxon_assoc;
 		u8 *indirect;
-		u8 payload[360];
+		u8 payload[IWL_CMD_MAX_PAYLOAD];
 	} __attribute__ ((packed)) cmd;
 } __attribute__ ((packed));