iwlwifi: set default aggregation frame limit to 63

This gives much better performance at fast 3x3 rates (up to ~160 Mbps).
The scheduler will still make most decisions about batch size based on
available packets and RX parameters.
Signed-off-by: Daniel Halperin <dhalperi@cs.washington.edu>
Signed-off-by: Wey-Yi Guy <wey-yi.w.guy@intel.com>

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

@@ -2132,7 +2132,7 @@ struct iwl_link_qual_general_params {
 #define LINK_QUAL_AGG_DISABLE_START_MAX	(255)
 #define LINK_QUAL_AGG_DISABLE_START_MIN	(0)
 
-#define LINK_QUAL_AGG_FRAME_LIMIT_DEF	(31)
+#define LINK_QUAL_AGG_FRAME_LIMIT_DEF	(63)
 #define LINK_QUAL_AGG_FRAME_LIMIT_MAX	(63)
 #define LINK_QUAL_AGG_FRAME_LIMIT_MIN	(0)