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/pydot/hardcode-graphviz-path.patch

@@ -0,0 +1,13 @@
+diff --git a/pydot.py b/pydot.py
+index 3c7da4d..582c5bc 100644
+--- a/pydot.py
++++ b/pydot.py
+@@ -124,7 +124,7 @@ def call_graphviz(program, arguments, working_dir, **kwargs):
+         'LD_LIBRARY_PATH': os.environ.get('LD_LIBRARY_PATH', ''),
+     }
+ 
+-    program_with_args = [program, ] + arguments
++    program_with_args = ['@graphviz@/bin/' + program, ] + arguments
+ 
+     process = subprocess.Popen(
+         program_with_args,