wifi: iwlwifi: mvm: use min_t() for agg_size

We can use min_t() for the agg_size and avoid
spelling out the (firmware) limit twice.
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: Gregory Greenman <gregory.greenman@intel.com>
Link: https://lore.kernel.org/r/20230620125813.211768036c1f.I78b7eea32eaae20cc9f32869aa3f42814634ce9a@changeidSigned-off-by: Johannes Berg <johannes.berg@intel.com>

drivers/net/wireless/intel/iwlwifi/mvm/sta.c

@@ -92,9 +92,8 @@ u32 iwl_mvm_get_sta_ampdu_dens(struct ieee80211_link_sta *link_sta,
 				    IEEE80211_HE_MAC_CAP3_MAX_AMPDU_LEN_EXP_MASK);
 
 	/* Limit to max A-MPDU supported by FW */
-	if (agg_size > (STA_FLG_MAX_AGG_SIZE_4M >> STA_FLG_MAX_AGG_SIZE_SHIFT))
-		agg_size = (STA_FLG_MAX_AGG_SIZE_4M >>
-			    STA_FLG_MAX_AGG_SIZE_SHIFT);
+	agg_size = min_t(u32, agg_size,
+			 STA_FLG_MAX_AGG_SIZE_4M >> STA_FLG_MAX_AGG_SIZE_SHIFT);
 
 	*_agg_size = agg_size;
 	return mpdu_dens;