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/applications/editors/emacs/elisp-packages/ott-mode/default.nix

@@ -0,0 +1,19 @@
+{ trivialBuild
+, ott
+, haskellPackages
+}:
+
+trivialBuild {
+  pname = "ott-mode";
+
+  inherit (ott) src version;
+
+  postUnpack = ''
+    mv $sourceRoot/emacs/ott-mode.el $sourceRoot
+  '';
+
+  meta = {
+    description = "Emacs ott mode (from ott sources)";
+    inherit (haskellPackages.Agda.meta) homepage license;
+  };
+}