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/compass/Gemfile.lock

@@ -0,0 +1,31 @@
+GEM
+  remote: https://rubygems.org/
+  specs:
+    chunky_png (1.4.0)
+    compass (1.0.3)
+      chunky_png (~> 1.2)
+      compass-core (~> 1.0.2)
+      compass-import-once (~> 1.0.5)
+      rb-fsevent (>= 0.9.3)
+      rb-inotify (>= 0.9)
+      sass (>= 3.3.13, < 3.5)
+    compass-core (1.0.3)
+      multi_json (~> 1.0)
+      sass (>= 3.3.0, < 3.5)
+    compass-import-once (1.0.5)
+      sass (>= 3.2, < 3.5)
+    ffi (1.15.4)
+    multi_json (1.15.0)
+    rb-fsevent (0.11.0)
+    rb-inotify (0.10.1)
+      ffi (~> 1.0)
+    sass (3.4.25)
+
+PLATFORMS
+  ruby
+
+DEPENDENCIES
+  compass!
+
+BUNDLED WITH
+   2.2.24