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/text/shfmt/default.nix

@@ -0,0 +1,37 @@
+{ lib, buildGoModule, fetchFromGitHub, installShellFiles, scdoc }:
+
+buildGoModule rec {
+  pname = "shfmt";
+  version = "3.5.1";
+
+  src = fetchFromGitHub {
+    owner = "mvdan";
+    repo = "sh";
+    rev = "v${version}";
+    sha256 = "sha256-/fNKgUh0AnyW1MOuTwk/deT5MnQMy8zMUA1KEdaM8SY=";
+  };
+
+  vendorSha256 = "sha256-3eao9bORPTsyCFpafp89mcL2Y7HNBlDfUsTull7qnYs=";
+
+  subPackages = [ "cmd/shfmt" ];
+
+  ldflags = [ "-s" "-w" "-X main.version=${version}" ];
+
+  nativeBuildInputs = [ installShellFiles scdoc ];
+
+  postBuild = ''
+    scdoc < cmd/shfmt/shfmt.1.scd > shfmt.1
+    installManPage shfmt.1
+  '';
+
+  meta = with lib; {
+    homepage = "https://github.com/mvdan/sh";
+    description = "A shell parser and formatter";
+    longDescription = ''
+      shfmt formats shell programs. It can use tabs or any number of spaces to indent.
+      You can feed it standard input, any number of files or any number of directories to recurse into.
+    '';
+    license = licenses.bsd3;
+    maintainers = with maintainers; [ zowoq SuperSandro2000 ];
+  };
+}