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/security/cameradar/default.nix

@@ -0,0 +1,41 @@
+{ lib
+, buildGoModule
+, curl
+, fetchFromGitHub
+, pkg-config
+}:
+
+buildGoModule rec {
+  pname = "cameradar";
+  version = "5.0.2";
+
+  src = fetchFromGitHub {
+    owner = "Ullaakut";
+    repo = pname;
+    rev = "v${version}";
+    sha256 = "sha256-GOqmz/aiOLGMfs9rQBIEQSgBycPzhu8BohcAc2U+gBw=";
+  };
+
+  vendorSha256 = "sha256-AIi57DWMvAKl0PhuwHO/0cHoDKk5e0bJsqHYBka4NiU=";
+
+  nativeBuildInputs = [
+    pkg-config
+  ];
+
+  buildInputs = [
+    curl
+  ];
+
+  subPackages = [
+    "cmd/cameradar"
+  ];
+  # At least one test is outdated
+  #doCheck = false;
+
+  meta = with lib; {
+    description = "RTSP stream access tool";
+    homepage = "https://github.com/Ullaakut/cameradar";
+    license = with licenses; [ mit ];
+    maintainers = with maintainers; [ fab ];
+  };
+}