iwlwifi: fix FAT channel config for 5000 series

The test to find out if we have FAT channels do not consider that
the value of regulatory_bands for the 5000 series is larger than its
eeprom size. Using the eeprom size is strange in itself.

Use a new EEPROM_REGULATORY_BAND_NO_FAT to indicate no FAT support
and test for that explicitly.

Signed-off-by: Reinette Chatre <reinette.chatre@intel.com>
Acked-by: Samuel Ortiz <samuel.ortiz@intel.com>
Tested-by: Johannes Berg <johannes@sipsolutions.net>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
diff --git a/drivers/net/wireless/iwlwifi/iwl-eeprom.h b/drivers/net/wireless/iwlwifi/iwl-eeprom.h
index 17fed49..3479153 100644
--- a/drivers/net/wireless/iwlwifi/iwl-eeprom.h
+++ b/drivers/net/wireless/iwlwifi/iwl-eeprom.h
@@ -370,6 +370,8 @@
  */
 #define EEPROM_4965_REGULATORY_BAND_52_FAT_CHANNELS (2*0xA8)	/* 22 bytes */
 
+#define EEPROM_REGULATORY_BAND_NO_FAT			(0)
+
 struct iwl_eeprom_ops {
 	const u32 regulatory_bands[7];
 	int (*verify_signature) (struct iwl_priv *priv);