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/pipectl/default.nix

@@ -0,0 +1,26 @@
+{ stdenv
+, lib
+, fetchFromGitHub
+, cmake
+}:
+
+stdenv.mkDerivation rec {
+  pname = "pipectl";
+  version = "0.3.0";
+
+  src = fetchFromGitHub {
+    owner = "Ferdi265";
+    repo = pname;
+    rev = "v${version}";
+    hash = "sha256-+o5hIDtDAh4r+AKCUhueQ3GBYf2sZtMATGX73Qg+tbo=";
+  };
+
+  nativeBuildInputs = [ cmake ];
+
+  meta = with lib; {
+    homepage = "https://github.com/Ferdi265/pipectl";
+    license = licenses.gpl3;
+    description = "a simple named pipe management utility";
+    maintainers = with maintainers; [ synthetica ];
+  };
+}