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/system/foreman/Gemfile

@@ -0,0 +1,3 @@
+source "https://rubygems.org"
+
+gem "foreman"

pkgs/tools/system/foreman/Gemfile.lock

@@ -0,0 +1,17 @@
+GEM
+  remote: https://rubygems.org/
+  specs:
+    foreman (0.87.2)
+
+PLATFORMS
+  aarch64-darwin
+  aarch64-linux
+  ruby
+  x86_64-darwin
+  x86_64-linux
+
+DEPENDENCIES
+  foreman
+
+BUNDLED WITH
+   2.2.20

pkgs/tools/system/foreman/default.nix

@@ -0,0 +1,15 @@
+{ bundlerEnv, lib, ruby }:
+
+bundlerEnv {
+  inherit ruby;
+  pname = "foreman";
+  gemdir = ./.;
+
+  meta = with lib; {
+    description = "Process manager for applications with multiple components";
+    homepage = "https://github.com/ddollar/foreman";
+    license = licenses.mit;
+    maintainers = with maintainers; [ zimbatm ];
+    platforms = ruby.meta.platforms;
+  };
+}

pkgs/tools/system/foreman/gemset.nix

@@ -0,0 +1,12 @@
+{
+  foreman = {
+    groups = ["default"];
+    platforms = [];
+    source = {
+      remotes = ["https://rubygems.org"];
+      sha256 = "0szgxvnzwkzrfbq5dkwa98mig78aqglfy6irdsvq1gq045pbq9r7";
+      type = "gem";
+    };
+    version = "0.87.2";
+  };
+}