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/data/misc/unicode-character-database/default.nix

@@ -0,0 +1,38 @@
+{ lib, stdenv
+, fetchurl
+, unzip
+}:
+
+stdenv.mkDerivation rec {
+  pname = "unicode-character-database";
+  version = "14.0.0";
+
+  src = fetchurl {
+    url = "https://www.unicode.org/Public/zipped/${version}/UCD.zip";
+    sha256 = "sha256-AzpSdrXXr4hEWJ+ONILzl3qDhecdEH03UFVGUXjCNgA=";
+  };
+
+  nativeBuildInputs = [
+    unzip
+  ];
+
+  setSourceRoot = ''
+    sourceRoot=$PWD
+  '';
+
+  installPhase = ''
+    runHook preInstall
+
+    mkdir -p $out/share/unicode
+    cp -r * $out/share/unicode
+
+    runHook postInstall
+  '';
+
+  meta = with lib; {
+    description = "Unicode Character Database";
+    homepage = "https://www.unicode.org/";
+    license = licenses.unicode-dfs-2016;
+    platforms = platforms.all;
+  };
+}