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/chroma/src.json

@@ -0,0 +1,11 @@
+{
+  "url": "https://github.com/alecthomas/chroma.git",
+  "rev": "36bdd4b98823bd1d7be96767cde3dd575e60b406",
+  "date": "2022-01-12T21:49:38+11:00",
+  "path": "/nix/store/951ya4wlxp217a2j3qdni29zwqfq0z7v-chroma",
+  "sha256": "0hjzb61m5lzx95xss82wil9s8f9hbw1zb3jj73ljfwkq5lqk76zq",
+  "fetchLFS": false,
+  "fetchSubmodules": false,
+  "deepClone": false,
+  "leaveDotGit": false
+}