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-emoji/default.nix

@@ -0,0 +1,50 @@
+{ lib
+, fetchurl
+, symlinkJoin
+}:
+
+let
+  version = "14.0";
+
+  fetchData = { file, sha256 }: fetchurl {
+    url = "https://www.unicode.org/Public/emoji/${version}/${file}";
+    inherit sha256;
+    downloadToTemp = true;
+    recursiveHash = true;
+    postFetch = ''
+      installDir="$out/share/unicode/emoji"
+      mkdir -p "$installDir"
+      mv "$downloadedFile" "$installDir/${file}"
+    '';
+  };
+
+  srcs = {
+    emoji-sequences = fetchData {
+      file = "emoji-sequences.txt";
+      sha256 = "sha256-4helD/0oe+UmNIuVxPx/P0R9V10EY/RccewdeemeGxE=";
+    };
+    emoji-test = fetchData {
+      file = "emoji-test.txt";
+      sha256 = "sha256-DDOVhnFzfvowINzBZ7dGYMZnL4khyRWVzrLL95djsUg=";
+    };
+    emoji-zwj-sequences = fetchData {
+      file = "emoji-zwj-sequences.txt";
+      sha256 = "sha256-owlGLICFkyEsIHz/DUZucxjBmgVO40A69BCJPbIYDA0=";
+    };
+  };
+in
+
+symlinkJoin rec {
+  name = "unicode-emoji-${version}";
+
+  paths = lib.attrValues srcs;
+
+  passthru = srcs;
+
+  meta = with lib; {
+    description = "Unicode Emoji Data Files";
+    homepage = "https://home.unicode.org/emoji/";
+    license = licenses.unicode-dfs-2016;
+    platforms = platforms.all;
+  };
+}