iwlwifi: more descriptive unsupported hardware message

Somehow these pre-production cards are showing up in the community.
With this message we hope that it will be clear that the hardware is not
supported.

Signed-off-by: Reinette Chatre <reinette.chatre@intel.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
diff --git a/drivers/net/wireless/iwlwifi/iwl-eeprom.c b/drivers/net/wireless/iwlwifi/iwl-eeprom.c
index 75517d0..401438a 100644
--- a/drivers/net/wireless/iwlwifi/iwl-eeprom.c
+++ b/drivers/net/wireless/iwlwifi/iwl-eeprom.c
@@ -285,7 +285,7 @@
 
 	return 0;
 err:
-	IWL_ERR(priv, "Unsupported EEPROM VER=0x%x < 0x%x CALIB=0x%x < 0x%x\n",
+	IWL_ERR(priv, "Unsupported (too old) EEPROM VER=0x%x < 0x%x CALIB=0x%x < 0x%x\n",
 		  eeprom_ver, priv->cfg->eeprom_ver,
 		  calib_ver,  priv->cfg->eeprom_calib_ver);
 	return -EINVAL;