Fix use of 'printf' in gdbtypes.c

An earlier patch of mine, commit 64b7cc50 ("Remove
gdb_print_host_address") inadvertently changed a function in
gdbtypes.c to use printf rather than printf_filtered.  This patch
fixes the problem.
diff --git a/gdb/gdbtypes.c b/gdb/gdbtypes.c
index ab1c9d4..8af96c7 100644
--- a/gdb/gdbtypes.c
+++ b/gdb/gdbtypes.c
@@ -5312,7 +5312,7 @@ recursive_dump_type (struct type *type, int spaces)
 	}
       printf_filtered ("\n");
     }
-  printf ("%s\n", host_address_to_string (type->fields ()));
+  printf_filtered ("%s\n", host_address_to_string (type->fields ()));
   for (idx = 0; idx < type->num_fields (); idx++)
     {
       if (type->code () == TYPE_CODE_ENUM)