crypto: af_alg - fixed style error in af_alg.c

Fixed style error identified by checkpatch.

ERROR: space required before the open parenthesis '('
+               switch(cmsg->cmsg_type) {
Signed-off-by: Joshua I. James <joshua@cybercrimetech.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>

crypto/af_alg.c

@@ -405,7 +405,7 @@ int af_alg_cmsg_send(struct msghdr *msg, struct af_alg_control *con)
 		if (cmsg->cmsg_level != SOL_ALG)
 			continue;
 
-		switch(cmsg->cmsg_type) {
+		switch (cmsg->cmsg_type) {
 		case ALG_SET_IV:
 			if (cmsg->cmsg_len < CMSG_LEN(sizeof(*con->iv)))
 				return -EINVAL;