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/text/mpage/default.nix

@@ -0,0 +1,32 @@
+{ fetchurl, lib, stdenv }:
+
+stdenv.mkDerivation rec {
+  pname = "mpage";
+  version = "2.5.7";
+
+  src = fetchurl {
+    url = "https://www.mesa.nl/pub/mpage/mpage-${version}.tgz";
+    sha256 = "1zn37r5xrvjgjbw2bdkc0r7s6q8b1krmcryzj0yf0dyxbx79rasi";
+  };
+
+  postPatch = ''
+    sed -i "Makefile" -e "s|^ *PREFIX *=.*$|PREFIX = $out|g"
+    substituteInPlace Makefile --replace 'gcc' '${stdenv.cc.targetPrefix}cc'
+  '';
+
+  meta = {
+    description = "Many-to-one page printing utility";
+
+    longDescription = ''
+      Mpage reads plain text files or PostScript documents and prints
+      them on a PostScript printer with the text reduced in size so
+      that several pages appear on one sheet of paper.  This is useful
+      for viewing large printouts on a small amount of paper.  It uses
+      ISO 8859.1 to print 8-bit characters.
+    '';
+
+    license = "liberal";  # a non-copyleft license, see `Copyright' file
+    homepage = "http://www.mesa.nl/pub/mpage/";
+    platforms = lib.platforms.all;
+  };
+}