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/bsp-layout/default.nix

@@ -0,0 +1,45 @@
+{ lib
+, stdenv
+, fetchFromGitHub
+, makeWrapper
+, git
+, bc
+, bspwm
+}:
+
+stdenv.mkDerivation rec {
+  pname = "bsp-layout";
+  version = "unstable-2021-05-10";
+
+  src = fetchFromGitHub {
+    owner = "phenax";
+    repo = pname;
+    rev = "726b850b79eabdc6f4d236cff52e434848cb55e3";
+    sha256 = "1wqlzbz7l9vz37gin2zckrnxkkabnd7x5mi9pb0x96w4yhld5mx6";
+  };
+
+  nativeBuildInputs = [ makeWrapper git bc ];
+  buildInputs = [ bspwm ];
+
+  makeFlags = [ "PREFIX=$(out)" ];
+
+  postInstall = ''
+    substituteInPlace $out/lib/bsp-layout/layout.sh --replace 'bc ' '${bc}/bin/bc '
+    for layout in tall rtall wide rwide
+    do
+      substituteInPlace "$out/lib/bsp-layout/layouts/$layout.sh" --replace 'bc ' '${bc}/bin/bc '
+    done
+  '';
+
+  meta = with lib; {
+    description = "Manage layouts in bspwm";
+    longDescription = ''
+      bsp-layout is a dynamic layout manager for bspwm, written in bash.
+      It provides layout options to fit most workflows.
+    '';
+    homepage = "https://github.com/phenax/bsp-layout";
+    license = licenses.mit;
+    maintainers = with maintainers; [ devins2518 totoroot ];
+    platforms = platforms.linux;
+  };
+}