crypto: ccp - fix typo in comment

Spelling mistake (triple letters) in comment.
Detected with the help of Coccinelle.
Signed-off-by: Julia Lawall <Julia.Lawall@inria.fr>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>

drivers/crypto/ccp/ccp-dev.h

@@ -366,7 +366,7 @@ struct ccp_device {
 
 	/* Master lists that all cmds are queued on. Because there can be
 	 * more than one CCP command queue that can process a cmd a separate
-	 * backlog list is neeeded so that the backlog completion call
+	 * backlog list is needed so that the backlog completion call
 	 * completes before the cmd is available for execution.
 	 */
 	spinlock_t cmd_lock ____cacheline_aligned;