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/backup/ugarit/default.nix

@@ -0,0 +1,41 @@
+{ pkgs, lib, eggDerivation, fetchegg }:
+let
+  eggs = import ./eggs.nix { inherit eggDerivation fetchegg; };
+in with pkgs; eggDerivation rec {
+  pname = "ugarit";
+  version = "2.0";
+  name = "${pname}-${version}";
+
+  src = fetchegg {
+    inherit version;
+    name = pname;
+    sha256 = "1l5zkr6b8l5dw9p5mimbva0ncqw1sbvp3d4cywm1hqx2m03a0f1n";
+  };
+
+  buildInputs = with eggs; [
+    aes
+    crypto-tools
+    matchable
+    message-digest
+    miscmacros
+    parley
+    pathname-expand
+    posix-extras
+    regex
+    sha2
+    sql-de-lite
+    srfi-37
+    ssql
+    stty
+    tiger-hash
+    z3
+  ];
+
+  meta = with lib; {
+    homepage = "https://www.kitten-technologies.co.uk/project/ugarit/";
+    description = "A backup/archival system based around content-addressible storage";
+    license = licenses.bsd3;
+    maintainers = [ maintainers.ebzzry ];
+    platforms = platforms.unix;
+  };
+}