TLS1.3: Solve check name issue-macro definition

Signed-off-by: XiaokangQian <xiaokang.qian@arm.com>
diff --git a/library/ssl_tls13_client.c b/library/ssl_tls13_client.c
index 686edfe..a27f723 100644
--- a/library/ssl_tls13_client.c
+++ b/library/ssl_tls13_client.c
@@ -1417,7 +1417,7 @@
 static int ssl_tls13_encrypted_extensions_postprocess( mbedtls_ssl_context *ssl );
 
 /*
- * Handler for  MBEDTLS_SSL_ENCRYPTED_ENTENSIONS
+ * Handler for  MBEDTLS_SSL_ENCRYPTED_EXTENSIONS
  */
 static int ssl_tls13_encrypted_extensions_process( mbedtls_ssl_context *ssl )
 {