iwlagn: correct naming for failure reply tx status

For failure tx status 0x90 and 0x91, give the correct name to reflect
the errors.

Signed-off-by: Wey-Yi Guy <wey-yi.w.guy@intel.com>
diff --git a/drivers/net/wireless/iwlwifi/iwl-agn-lib.c b/drivers/net/wireless/iwlwifi/iwl-agn-lib.c
index c42cb18..616115a 100644
--- a/drivers/net/wireless/iwlwifi/iwl-agn-lib.c
+++ b/drivers/net/wireless/iwlwifi/iwl-agn-lib.c
@@ -111,10 +111,10 @@
 	case TX_STATUS_FAIL_INSUFFICIENT_CF_POLL:
 		priv->_agn.reply_tx_stats.insuff_cf_poll++;
 		break;
-	case TX_STATUS_FAIL_FW_DROP:
+	case TX_STATUS_FAIL_PASSIVE_NO_RX:
 		priv->_agn.reply_tx_stats.fail_hw_drop++;
 		break;
-	case TX_STATUS_FAIL_STA_COLOR_MISMATCH_DROP:
+	case TX_STATUS_FAIL_NO_BEACON_ON_RADAR:
 		priv->_agn.reply_tx_stats.sta_color_mismatch++;
 		break;
 	default: