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/games/gambatte/fix-scons-paths.patch

@@ -0,0 +1,15 @@
+diff --git a/libgambatte/SConstruct b/libgambatte/SConstruct
+index e882514..87e1eaa 100644
+--- a/libgambatte/SConstruct
++++ b/libgambatte/SConstruct
+@@ -5,7 +5,9 @@ vars = Variables()
+ vars.Add('CC')
+ vars.Add('CXX')
+ 
+-env = Environment(CPPPATH = ['src', 'include', '../common'],
++import os
++env = Environment(ENV = os.environ,
++                  CPPPATH = ['src', 'include', '../common'],
+                   CFLAGS = global_cflags + global_defines,
+                   CXXFLAGS = global_cxxflags + global_defines,
+                   variables = vars)