iwlagn: Remove ht40 support from 5.2GHz for _bgn devices

For _bgn device, remove ht40 support for 5.2GHz, it is probably ok since
the "band" is not support but just feel strange.
Signed-off-by: Wey-Yi Guy <wey-yi.w.guy@intel.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>

drivers/net/wireless/iwlwifi/iwl-1000.c

@@ -134,8 +134,7 @@ static int iwl1000_hw_set_hw_params(struct iwl_priv *priv)
 	priv->hw_params.max_data_size = IWLAGN_RTC_DATA_SIZE;
 	priv->hw_params.max_inst_size = IWLAGN_RTC_INST_SIZE;
 
-	priv->hw_params.ht40_channel =  BIT(IEEE80211_BAND_2GHZ) |
-					BIT(IEEE80211_BAND_5GHZ);
+	priv->hw_params.ht40_channel =  BIT(IEEE80211_BAND_2GHZ);
 
 	priv->hw_params.tx_chains_num = num_of_ant(priv->cfg->valid_tx_ant);
 	if (priv->cfg->rx_with_siso_diversity)

drivers/net/wireless/iwlwifi/iwl-2000.c

@@ -129,8 +129,7 @@ static int iwl2000_hw_set_hw_params(struct iwl_priv *priv)
 	priv->hw_params.max_data_size = IWL60_RTC_DATA_SIZE;
 	priv->hw_params.max_inst_size = IWL60_RTC_INST_SIZE;
 
-	priv->hw_params.ht40_channel =  BIT(IEEE80211_BAND_2GHZ) |
-					BIT(IEEE80211_BAND_5GHZ);
+	priv->hw_params.ht40_channel =  BIT(IEEE80211_BAND_2GHZ);
 
 	priv->hw_params.tx_chains_num = num_of_ant(priv->cfg->valid_tx_ant);
 	if (priv->cfg->rx_with_siso_diversity)