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/pulumi-aws/default.nix

@@ -0,0 +1,46 @@
+{ stdenv
+, lib
+, buildPythonPackage
+, fetchFromGitHub
+, fetchpatch
+, pulumi
+, parver
+, semver
+, isPy27
+}:
+
+buildPythonPackage rec {
+  pname = "pulumi-aws";
+  # version is independant of pulumi's.
+  version = "5.3.0";
+  disabled = isPy27;
+
+  src = fetchFromGitHub {
+    owner = "pulumi";
+    repo = "pulumi-aws";
+    rev = "v${version}";
+    sha256 = "sha256-LrWiNYJeQQvXJDOxklRO86VSiaadvkOepQVPhh2BBkk=";
+  };
+
+  propagatedBuildInputs = [
+    pulumi
+    parver
+    semver
+  ];
+
+  postPatch = ''
+    cd sdk/python
+  '';
+
+  # checks require cloud resources
+  doCheck = false;
+  pythonImportsCheck = ["pulumi_aws"];
+
+  meta = with lib; {
+    broken = (stdenv.isLinux && stdenv.isAarch64) || stdenv.isDarwin;
+    description = "Pulumi python amazon web services provider";
+    homepage = "https://github.com/pulumi/pulumi-aws";
+    license = licenses.asl20;
+    maintainers = with maintainers; [ costrouc ];
+  };
+}