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/development/tools/icr/default.nix

@@ -0,0 +1,45 @@
+{ lib
+, fetchFromGitHub
+, crystal
+, shards
+, makeWrapper
+, pkg-config
+, which
+, openssl
+, readline
+, libyaml
+, zlib
+}:
+
+crystal.buildCrystalPackage rec {
+  pname = "icr";
+  version = "unstable-2021-03-14";
+
+  src = fetchFromGitHub {
+    owner = "crystal-community";
+    repo = "icr";
+    rev = "b6b335f40aff4c2c07d21250949935e8259f7d1b";
+    sha256 = "sha256-Qoy37lCdHFnMAuuqyB9uT15/RLllksFyApYAGy+RmDs=";
+  };
+
+  shardsFile = ./shards.nix;
+
+  buildInputs = [ libyaml openssl readline zlib ];
+
+  nativeBuildInputs = [ makeWrapper pkg-config which ];
+
+  # tests are failing due to our sandbox
+  doCheck = false;
+
+  postFixup = ''
+    wrapProgram $out/bin/icr \
+      --prefix PATH : ${lib.makeBinPath [ crystal shards makeWrapper which ]}
+  '';
+
+  meta = with lib; {
+    description = "Interactive console for the Crystal programming language";
+    homepage = "https://github.com/crystal-community/icr";
+    license = licenses.mit;
+    maintainers = with maintainers; [ peterhoeg ];
+  };
+}

pkgs/development/tools/icr/shards.nix

@@ -0,0 +1,8 @@
+{
+  readline = {
+    owner = "crystal-lang";
+    repo = "crystal-readline";
+    rev = "0fb7d186da8e1b157998d98d1c96e99699b791eb";
+    sha256 = "1rk27vw3ssldgnfgprwvz2gag02v4g6d6yg56b3sk9w3fn8jyyi8";
+  };
+}