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/code-minimap/default.nix

@@ -0,0 +1,29 @@
+{ lib
+, stdenv
+, rustPlatform
+, fetchFromGitHub
+, libiconv
+}:
+
+rustPlatform.buildRustPackage rec {
+  pname = "code-minimap";
+  version = "0.6.4";
+
+  src = fetchFromGitHub {
+    owner = "wfxr";
+    repo = pname;
+    rev = "v${version}";
+    sha256 = "sha256-XhewfU3l/n2wiF9pKm1OOKQ7REzz3WzcBiVgOiYnAYU=";
+  };
+
+  cargoSha256 = "sha256-Z3bc0w8slI9lHbDbrIK65xurtmTK4Y4caF7kxxJBA3Q=";
+
+  buildInputs = lib.optional stdenv.isDarwin libiconv;
+
+  meta = with lib; {
+    description = "A high performance code minimap render";
+    homepage = "https://github.com/wfxr/code-minimap";
+    license = with licenses; [ asl20 /* or */ mit ];
+    maintainers = with maintainers; [ bsima ];
+  };
+}