Rename the finalize_client{server}_hello()

Signed-off-by: Xiaokang Qian <xiaokang.qian@arm.com>
diff --git a/library/ssl_tls13_client.c b/library/ssl_tls13_client.c
index 6238499..8970dd4 100644
--- a/library/ssl_tls13_client.c
+++ b/library/ssl_tls13_client.c
@@ -1231,7 +1231,7 @@
     return 0;
 }
 
-int mbedtls_ssl_tls13_finalize_write_client_hello(mbedtls_ssl_context *ssl)
+int mbedtls_ssl_tls13_finalize_client_hello(mbedtls_ssl_context *ssl)
 {
     ((void) ssl);