uboot: (firmwareOdroidC2/C4) don't invoke patch tool, use patches = [] instead

https://github.com/NixOS/nixpkgs/blob/master/pkgs/stdenv/generic/setup.sh#L948
this can do it nicely.

Signed-off-by: Anton Arapov <anton@deadbeef.mx>

pkgs/development/python-modules/pyfribidi/pyfribidi-clang.patch

@@ -0,0 +1,17 @@
+diff --git a/pyfribidi.c b/pyfribidi.c
+index 9a0120d..238134a 100644
+--- a/pyfribidi.c
++++ b/pyfribidi.c
+@@ -148,10 +148,11 @@ init_pyfribidi (void)
+ {
+ #if PY_MAJOR_VERSION >= 3
+         PyObject *module = PyModule_Create (&pyfribidi_moduledef);
++        if (module == NULL) return NULL;
+ #else
+         PyObject *module = Py_InitModule ("_pyfribidi", PyfribidiMethods);
++        if (module == NULL) return;
+ #endif
+-	if (module == NULL) return NULL;
+ 
+ 	PyModule_AddIntConstant (module, "RTL", (long) FRIBIDI_TYPE_RTL);
+ 	PyModule_AddIntConstant (module, "LTR", (long) FRIBIDI_TYPE_LTR);