ath5k: fix formatting errors found by checkpatch.pl

Signed-off-by: Pavel Roskin <proski@gnu.org>
Signed-off-by: John W. Linville <linville@tuxdriver.com>

drivers/net/wireless/ath/ath5k/pcu.c

@@ -534,7 +534,7 @@ u64 ath5k_hw_get_tsf64(struct ath5k_hw *ah)
 
 	local_irq_restore(flags);
 
-	WARN_ON( i == ATH5K_MAX_TSF_READ );
+	WARN_ON(i == ATH5K_MAX_TSF_READ);
 
 	return ((u64)tsf_upper1 << 32) | tsf_lower;
 }