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/tools/admin/aws-env/default.nix

@@ -0,0 +1,25 @@
+{ buildGoPackage, fetchFromGitHub, lib }:
+
+buildGoPackage rec {
+  pname = "aws-env";
+  version = "0.4";
+  rev = "v${version}";
+
+  goPackagePath = "github.com/Droplr/aws-env";
+
+  src = fetchFromGitHub {
+    owner = "Droplr";
+    repo = pname;
+    inherit rev;
+    sha256 = "0pw1qz1nn0ig90p8d8c1qcwsdz0m9w63ib07carhh86gw55425j7";
+  };
+
+  goDeps = ./deps.nix;
+
+  meta = with lib; {
+    description = "Secure way to handle environment variables in Docker and envfile with AWS Parameter Store";
+    homepage = "https://github.com/Droplr/aws-env";
+    license = licenses.mit;
+    maintainers = with maintainers; [ srhb ];
+  };
+}