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/misc/pistol/default.nix

@@ -0,0 +1,46 @@
+{ lib
+, buildGoModule
+, fetchFromGitHub
+, file
+, installShellFiles
+, asciidoctor
+}:
+
+buildGoModule rec {
+  pname = "pistol";
+  version = "0.3.2";
+
+  src = fetchFromGitHub {
+    owner = "doronbehar";
+    repo = pname;
+    rev = "v${version}";
+    sha256 = "sha256-DGbWlEDI/qGNpdT8N79RsLxnUm4Sw8lHFRIBFd1GmK0=";
+  };
+
+  vendorSha256 = "sha256-poTd0lXRaJeDxwcw+h76NPC0mFB9nwm2vLLB5UUK1dk=";
+
+  doCheck = false;
+
+  subPackages = [ "cmd/pistol" ];
+
+  buildInputs = [
+    file
+  ];
+  nativeBuildInputs = [
+    installShellFiles
+    asciidoctor
+  ];
+  postBuild = ''
+    asciidoctor -b manpage -d manpage README.adoc
+    installManPage pistol.1
+  '';
+
+  ldflags = [ "-s" "-w" "-X main.Version=${version}" ];
+
+  meta = with lib; {
+    description = "General purpose file previewer designed for Ranger, Lf to make scope.sh redundant";
+    homepage = "https://github.com/doronbehar/pistol";
+    license = licenses.mit;
+    maintainers = with maintainers; [ doronbehar ];
+  };
+}