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/sha1collisiondetection/default.nix

@@ -0,0 +1,34 @@
+{ lib, stdenv, fetchFromGitHub, libtool, which }:
+
+stdenv.mkDerivation  rec {
+  pname = "sha1collisiondetection";
+  version = "1.0.3";
+
+  src = fetchFromGitHub {
+    owner = "cr-marcstevens";
+    repo = "sha1collisiondetection";
+    rev = "stable-v${version}";
+    sha256 = "0xn31hkkqs0kj9203rzx6w4nr0lq8fnrlm5i76g0px3q4v2dzw1s";
+  };
+
+  makeFlags = [ "PREFIX=$(out)" ];
+
+  doCheck = true;
+
+  nativeBuildInputs = [ libtool which ];
+
+  meta = with lib; {
+    description = "Library and command line tool to detect SHA-1 collision";
+    longDescription = ''
+      This library and command line tool were designed as near drop-in
+      replacements for common SHA-1 libraries and sha1sum. They will
+      compute the SHA-1 hash of any given file and additionally will
+      detect cryptanalytic collision attacks against SHA-1 present in
+      each file. It is very fast and takes less than twice the amount
+      of time as regular SHA-1.
+      '';
+    platforms = platforms.all;
+    maintainers = with maintainers; [ leenaars ];
+    license = licenses.mit;
+  };
+}