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/overcommit/Gemfile

@@ -0,0 +1,2 @@
+source 'https://rubygems.org'
+gem 'overcommit'

pkgs/development/tools/overcommit/Gemfile.lock

@@ -0,0 +1,17 @@
+GEM
+  remote: https://rubygems.org/
+  specs:
+    childprocess (3.0.0)
+    iniparse (1.4.4)
+    overcommit (0.51.0)
+      childprocess (>= 0.6.3, < 4)
+      iniparse (~> 1.4)
+
+PLATFORMS
+  ruby
+
+DEPENDENCIES
+  overcommit
+
+BUNDLED WITH
+   2.1.4

pkgs/development/tools/overcommit/default.nix

@@ -0,0 +1,15 @@
+{ lib, bundlerApp }:
+
+bundlerApp {
+  pname = "overcommit";
+  gemdir = ./.;
+  exes = [ "overcommit" ];
+
+  meta = with lib; {
+    description = "Tool to manage and configure Git hooks";
+    homepage    = "https://github.com/sds/overcommit";
+    license     = licenses.mit;
+    maintainers = with maintainers; [ Br1ght0ne ];
+    platforms   = platforms.unix;
+  };
+}

pkgs/development/tools/overcommit/gemset.nix

@@ -0,0 +1,33 @@
+{
+  childprocess = {
+    groups = ["default"];
+    platforms = [];
+    source = {
+      remotes = ["https://rubygems.org"];
+      sha256 = "1ic028k8xgm2dds9mqnvwwx3ibaz32j8455zxr9f4bcnviyahya5";
+      type = "gem";
+    };
+    version = "3.0.0";
+  };
+  iniparse = {
+    groups = ["default"];
+    platforms = [];
+    source = {
+      remotes = ["https://rubygems.org"];
+      sha256 = "1xbik6838gfh5yq9ahh1m7dzszxlk0g7x5lvhb8amk60mafkrgws";
+      type = "gem";
+    };
+    version = "1.4.4";
+  };
+  overcommit = {
+    dependencies = ["childprocess" "iniparse"];
+    groups = ["default"];
+    platforms = [];
+    source = {
+      remotes = ["https://rubygems.org"];
+      sha256 = "0fjrrm9dy9mry5ss96sizn6xcphia5l54ydz9c31phipm61nwmfk";
+      type = "gem";
+    };
+    version = "0.51.0";
+  };
+}