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/development/tools/parsing/hammer/default.nix

@@ -0,0 +1,38 @@
+{ fetchFromGitLab
+, glib
+, lib
+, pkg-config
+, scons
+, stdenv
+}:
+
+stdenv.mkDerivation rec {
+  pname = "hammer";
+  version = "nightly_20220416";
+
+  src = fetchFromGitLab {
+    domain = "gitlab.special-circumstanc.es";
+    owner = "hammer";
+    repo = "hammer";
+    rev = version;
+    sha256 = "sha256-xMZhUnycGeHkNZfHQ2d9mETti8HwGHZNskFqh9f0810=";
+  };
+
+  nativeBuildInputs = [ pkg-config scons ];
+  buildInputs = [ glib ];
+
+  meta = with lib; {
+    description = "A bit-oriented parser combinator library";
+    longDescription = ''
+      Hammer is a parsing library. Like many modern parsing libraries, it
+      provides a parser combinator interface for writing grammars as inline
+      domain-specific languages, but Hammer also provides a variety of parsing
+      backends. It's also bit-oriented rather than character-oriented, making it
+      ideal for parsing binary data such as images, network packets, audio, and
+      executables.
+    '';
+    homepage = "https://gitlab.special-circumstanc.es/hammer/hammer";
+    license = licenses.gpl2;
+    maintainers = with maintainers; [ azahi ];
+  };
+}