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/fltrdr/default.nix

@@ -0,0 +1,40 @@
+{ lib, stdenv
+, fetchFromGitHub
+, cmake
+, icu, openssl
+}:
+
+stdenv.mkDerivation rec {
+  pname = "fltrdr";
+  version = "0.3.1";
+
+  src = fetchFromGitHub {
+    repo   = "fltrdr";
+    owner  = "octobanana";
+    rev    = version;
+    sha256 = "1vpci7vqzcpdd21zgigyz38k77r9fc81dmiwsvfr8w7gad5sg6sj";
+  };
+
+  nativeBuildInputs = [ cmake ];
+
+  buildInputs = [ icu openssl ];
+
+  meta = with lib; {
+    homepage = "https://octobanana.com/software/fltrdr";
+    description = "A TUI text reader for the terminal";
+
+    longDescription = ''
+      Fltrdr, or flat-reader, is an interactive text reader for the terminal. It
+      is flat in the sense that the reader is word-based. It creates a
+      horizontal stream of words, ignoring all newline characters and reducing
+      extra whitespace. Its purpose is to facilitate reading, scanning, and
+      searching text. The program has a play mode that moves the reader forward
+      one word at a time, along with a configurable words per minute (WPM),
+      setting.
+    '';
+
+    platforms   = platforms.linux; # can only test linux
+    license     = licenses.mit;
+    maintainers = [ maintainers.matthiasbeyer ];
+  };
+}