c6x: Fix misspellings in comments.

Signed-off-by: Adam Buchbinder <adam.buchbinder@gmail.com>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
diff --git a/arch/c6x/platforms/cache.c b/arch/c6x/platforms/cache.c
index 46fd2d5..ec3c887 100644
--- a/arch/c6x/platforms/cache.c
+++ b/arch/c6x/platforms/cache.c
@@ -145,7 +145,7 @@
 		spin_lock_irqsave(&cache_lock, flags);
 
 		/*
-		 * If another cache operation is occuring
+		 * If another cache operation is occurring
 		 */
 		if (unlikely(imcr_get(wc_reg))) {
 			spin_unlock_irqrestore(&cache_lock, flags);