change more references to (f)printf to polarssl_(f)printf to allow overriding
diff --git a/tests/suites/test_suite_x509parse.function b/tests/suites/test_suite_x509parse.function
index 89b40b7..7af1d1e 100644
--- a/tests/suites/test_suite_x509parse.function
+++ b/tests/suites/test_suite_x509parse.function
@@ -445,7 +445,7 @@
     my_ret = x509_get_rsassa_pss_params( &params, &my_msg_md, &my_mgf_md,
                                          &my_salt_len );
 
-    if( my_ret != ref_ret ) printf( "\n%04X\n", - my_ret );
+    if( my_ret != ref_ret ) polarssl_printf( "\n%04X\n", - my_ret );
 
     TEST_ASSERT( my_ret == ref_ret );