Fix a whitespace issue

Co-authored-by: Janos Follath <janos.follath@arm.com>
diff --git a/library/ssl_msg.c b/library/ssl_msg.c
index ae4882d..4be9c62 100644
--- a/library/ssl_msg.c
+++ b/library/ssl_msg.c
@@ -1076,10 +1076,10 @@
  * Use only bit operations to avoid branches that could be used by some
  * compilers on some platforms to translate comparison operators.
  */
-static void mbedtls_ssl_cf_memcpy_if_eq(unsigned char *dst,
-                                        const unsigned char *src,
-                                        size_t len,
-                                        size_t c1, size_t c2 )
+static void mbedtls_ssl_cf_memcpy_if_eq( unsigned char *dst,
+                                         const unsigned char *src,
+                                         size_t len,
+                                         size_t c1, size_t c2 )
 {
     /* diff = 0 if c1 == c2, non-zero otherwise */
     const size_t diff = c1 ^ c2;