iwlegacy: change some symbols duplicated from iwlwifi directory

drivers/net/wireless/iwlegacy/built-in.o:(.rodata+0x29f0): multiple definition of `iwl_rates'
drivers/net/wireless/iwlwifi/built-in.o:(.rodata+0xa68): first defined here
powerpc64-linux-ld: Warning: size of symbol `iwl_rates' changed from 143 in drivers/net/wireless/iwlwifi/built-in.o to 130 in drivers/net/wireless/iwlegacy/built-in.o
drivers/net/wireless/iwlegacy/built-in.o:(.data+0x0): multiple definition of `bt_coex_active'
drivers/net/wireless/iwlwifi/built-in.o:(.data+0x668): first defined here
drivers/net/wireless/iwlegacy/built-in.o:(.rodata+0x750): multiple definition of `iwl_eeprom_band_1'
drivers/net/wireless/iwlwifi/built-in.o:(.rodata+0x27d0): first defined here
drivers/net/wireless/iwlegacy/built-in.o:(.rodata+0x3f0): multiple definition of `iwl_bcast_addr'
drivers/net/wireless/iwlwifi/built-in.o:(.rodata+0x24f8): first defined here
drivers/net/wireless/iwlegacy/built-in.o:(.bss+0x3d48): multiple definition of `iwl_debug_level'
drivers/net/wireless/iwlwifi/built-in.o:(.bss+0x21950): first defined here

Reported-by: Stephen Rothwell <sfr@canb.auug.org.au>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
diff --git a/drivers/net/wireless/iwlegacy/iwl-dev.h b/drivers/net/wireless/iwlegacy/iwl-dev.h
index 25718cf..9ee849d 100644
--- a/drivers/net/wireless/iwlegacy/iwl-dev.h
+++ b/drivers/net/wireless/iwlegacy/iwl-dev.h
@@ -624,7 +624,7 @@
  *
  ****************************************************************************/
 extern void iwl4965_update_chain_flags(struct iwl_priv *priv);
-extern const u8 iwl_bcast_addr[ETH_ALEN];
+extern const u8 iwlegacy_bcast_addr[ETH_ALEN];
 extern int iwl_legacy_queue_space(const struct iwl_queue *q);
 static inline int iwl_legacy_queue_used(const struct iwl_queue *q, int i)
 {
@@ -1285,7 +1285,7 @@
 #ifdef CONFIG_IWLWIFI_LEGACY_DEBUG
 	/* debugging info */
 	u32 debug_level; /* per device debugging will override global
-			    iwl_debug_level if set */
+			    iwlegacy_debug_level if set */
 #endif /* CONFIG_IWLWIFI_LEGACY_DEBUG */
 #ifdef CONFIG_IWLWIFI_LEGACY_DEBUGFS
 	/* debugfs */
@@ -1338,12 +1338,12 @@
 	if (priv->debug_level)
 		return priv->debug_level;
 	else
-		return iwl_debug_level;
+		return iwlegacy_debug_level;
 }
 #else
 static inline u32 iwl_legacy_get_debug_level(struct iwl_priv *priv)
 {
-	return iwl_debug_level;
+	return iwlegacy_debug_level;
 }
 #endif