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-debugfs.c b/drivers/net/wireless/iwlegacy/iwl-debugfs.c
index 6ea9c4f..2d32438 100644
--- a/drivers/net/wireless/iwlegacy/iwl-debugfs.c
+++ b/drivers/net/wireless/iwlegacy/iwl-debugfs.c
@@ -748,7 +748,7 @@
 				"q[%d]: read_ptr: %u, write_ptr: %u\n",
 				cnt, q->read_ptr, q->write_ptr);
 	}
-	if (priv->tx_traffic && (iwl_debug_level & IWL_DL_TX)) {
+	if (priv->tx_traffic && (iwlegacy_debug_level & IWL_DL_TX)) {
 		ptr = priv->tx_traffic;
 		pos += scnprintf(buf + pos, bufsz - pos,
 				"Tx Traffic idx: %u\n",	priv->tx_traffic_idx);
@@ -771,7 +771,7 @@
 			"read: %u, write: %u\n",
 			 rxq->read, rxq->write);
 
-	if (priv->rx_traffic && (iwl_debug_level & IWL_DL_RX)) {
+	if (priv->rx_traffic && (iwlegacy_debug_level & IWL_DL_RX)) {
 		ptr = priv->rx_traffic;
 		pos += scnprintf(buf + pos, bufsz - pos,
 				"Rx Traffic idx: %u\n",	priv->rx_traffic_idx);