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/idris-modules/categories.nix

@@ -0,0 +1,21 @@
+{ build-idris-package
+, fetchFromGitHub
+, lib
+}:
+build-idris-package  {
+  pname = "categories";
+  version = "2018-07-02";
+
+  src = fetchFromGitHub {
+    owner = "danilkolikov";
+    repo = "categories";
+    rev = "a1e0ac0f0da2e336a7d3900051892ff7ed504c35";
+    sha256 = "1bbmm8zif5d5wckdaddw6q3c39w6ms1cxrlrmkdn7bik88dawff2";
+  };
+
+  meta = {
+    description = "Category Theory";
+    homepage = "https://github.com/danilkolikov/categories";
+    maintainers = [ lib.maintainers.brainrape ];
+  };
+}