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/catimg/default.nix

@@ -0,0 +1,26 @@
+{ lib, stdenv, fetchFromGitHub, cmake } :
+
+with lib;
+
+stdenv.mkDerivation rec {
+  pname = "catimg";
+  version = "2.7.0";
+
+  src = fetchFromGitHub {
+    owner = "posva";
+    repo = pname;
+    rev = version;
+    sha256 = "0a2dswbv4xddb2l2d55hc43lzvjwrjs5z9am7v6i0p0mi2fmc89s";
+  };
+
+  nativeBuildInputs = [ cmake ];
+
+  meta = {
+    license = licenses.mit;
+    homepage = "https://github.com/posva/catimg";
+    description = "Insanely fast image printing in your terminal";
+    maintainers = with maintainers; [ ryantm ];
+    platforms = platforms.unix;
+  };
+
+}