iwlwifi: define and use if iwl_mvm_has_tlc_offload

This aligns the code with the existing pattern to check
if the firmware has a certain capability.

Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
diff --git a/drivers/net/wireless/intel/iwlwifi/mvm/mac80211.c b/drivers/net/wireless/intel/iwlwifi/mvm/mac80211.c
index 357380a..8aed40a 100644
--- a/drivers/net/wireless/intel/iwlwifi/mvm/mac80211.c
+++ b/drivers/net/wireless/intel/iwlwifi/mvm/mac80211.c
@@ -421,7 +421,7 @@
 	ieee80211_hw_set(hw, SUPPORTS_AMSDU_IN_AMPDU);
 	ieee80211_hw_set(hw, NEEDS_UNIQUE_STA_ADDR);
 
-	if (fw_has_capa(&mvm->fw->ucode_capa, IWL_UCODE_TLV_CAPA_TLC_OFFLOAD)) {
+	if (iwl_mvm_has_tlc_offload(mvm)) {
 		ieee80211_hw_set(hw, TX_AMPDU_SETUP_IN_HW);
 		ieee80211_hw_set(hw, HAS_RATE_CONTROL);
 	}
@@ -460,7 +460,7 @@
 	/* this is the case for CCK frames, it's better (only 8) for OFDM */
 	hw->radiotap_timestamp.accuracy = 22;
 
-	if (!fw_has_capa(&mvm->fw->ucode_capa, IWL_UCODE_TLV_CAPA_TLC_OFFLOAD))
+	if (!iwl_mvm_has_tlc_offload(mvm))
 		hw->rate_control_algorithm = RS_NAME;
 
 	hw->uapsd_queues = IWL_MVM_UAPSD_QUEUES;