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/misc/gsctl/default.nix

@@ -0,0 +1,33 @@
+{ lib, buildGoModule, fetchFromGitHub, kubectl, stdenv }:
+
+buildGoModule rec {
+  pname = "gsctl";
+  version = "1.1.5";
+
+  src = fetchFromGitHub {
+    owner = "giantswarm";
+    repo = pname;
+    rev = version;
+    sha256 = "sha256-P1hJoZ1YSZTCo5ha/Um/nYVVhbYC3dcrQGJYTSnqNu4=";
+  };
+
+  vendorSha256 = "sha256-NeRABlKUpD2ZHRid/vu34Dh9uHZ+7IXWFPX8jkexUog=";
+
+  ldflags = [
+    "-s" "-w"
+    "-X github.com/giantswarm/gsctl/buildinfo.Version=${version}"
+  ];
+
+  checkInputs = [
+    kubectl
+  ];
+
+  doCheck = !stdenv.isDarwin;
+
+  meta = with lib; {
+    description = "The Giant Swarm command line interface";
+    homepage = "https://github.com/giantswarm/gsctl";
+    license = licenses.asl20;
+    maintainers = with maintainers; [ joesalisbury ];
+  };
+}