iwlwifi : fix checkpatch.pl errors

Patch fixes checkpatch.pl errors for iwlwifi.

Signed-off-by: Abhijeet Kolekar <abhijeet.kolekar@intel.com>
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-tx.c b/drivers/net/wireless/iwlwifi/iwl-tx.c
index 166f000..d9638d7 100644
--- a/drivers/net/wireless/iwlwifi/iwl-tx.c
+++ b/drivers/net/wireless/iwlwifi/iwl-tx.c
@@ -1498,7 +1498,7 @@
 		ack = bitmap & (1ULL << i);
 		successes += !!ack;
 		IWL_DEBUG_TX_REPLY("%s ON i=%d idx=%d raw=%d\n",
-			ack? "ACK":"NACK", i, (agg->start_idx + i) & 0xff,
+			ack ? "ACK" : "NACK", i, (agg->start_idx + i) & 0xff,
 			agg->start_idx + i);
 	}