fix various issues

Signed-off-by: Jerry Yu <jerry.h.yu@arm.com>
diff --git a/library/ssl_misc.h b/library/ssl_misc.h
index 6f83fc3..06351fc 100644
--- a/library/ssl_misc.h
+++ b/library/ssl_misc.h
@@ -1501,9 +1501,7 @@
 int mbedtls_ssl_tls13_finish_handshake_msg( mbedtls_ssl_context *ssl,
                                             size_t buf_len,
                                             size_t msg_len );
-/*
- * Update checksum with handshake header
- */
+
 void mbedtls_ssl_tls13_add_hs_hdr_to_checksum( mbedtls_ssl_context *ssl,
                                                unsigned hs_type,
                                                size_t total_hs_len );