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/clair/default.nix

@@ -0,0 +1,34 @@
+{ lib, buildGoModule, fetchFromGitHub, makeWrapper, rpm, xz }:
+
+buildGoModule rec {
+  pname = "clair";
+  version = "4.4.2";
+
+  src = fetchFromGitHub {
+    owner = "quay";
+    repo = pname;
+    rev = "v${version}";
+    sha256 = "sha256-6nlVcuWAp9lWji4ruAZ//D6iEbL+zSjLDX9bYyRfTQ8=";
+  };
+
+  vendorSha256 = "sha256-35rUeDi+7xSI2kSk9FvtubxhZq5LePNoXC66dIy6gs8=";
+
+  nativeBuildInputs = [ makeWrapper ];
+
+  subPackages = [ "cmd/clair" "cmd/clairctl" ];
+
+  ldflags = [ "-s" "-w" "-X main.Version=${version}" ];
+
+  postInstall = ''
+    wrapProgram $out/bin/clair \
+      --prefix PATH : "${lib.makeBinPath [ rpm xz ]}"
+  '';
+
+  meta = with lib; {
+    description = "Vulnerability Static Analysis for Containers";
+    homepage = "https://github.com/quay/clair";
+    changelog = "https://github.com/quay/clair/blob/v${version}/CHANGELOG.md";
+    license = licenses.asl20;
+    maintainers = with maintainers; [ marsam ];
+  };
+}