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/servers/monitoring/riemann-dash/Gemfile.lock

@@ -0,0 +1,38 @@
+GEM
+  remote: https://rubygems.org/
+  specs:
+    erubis (2.7.0)
+    ffi (1.10.0)
+    multi_json (1.3.6)
+    rack (1.6.11)
+    rack-protection (1.5.5)
+      rack
+    rb-fsevent (0.10.3)
+    rb-inotify (0.10.0)
+      ffi (~> 1.0)
+    riemann-dash (0.2.14)
+      erubis (>= 2.7.0)
+      multi_json (= 1.3.6)
+      sass (>= 3.1.14)
+      sinatra (~> 1.4.5)
+      webrick (~> 1.3.1)
+    sass (3.7.4)
+      sass-listen (~> 4.0.0)
+    sass-listen (4.0.0)
+      rb-fsevent (~> 0.9, >= 0.9.4)
+      rb-inotify (~> 0.9, >= 0.9.7)
+    sinatra (1.4.8)
+      rack (~> 1.5)
+      rack-protection (~> 1.4)
+      tilt (>= 1.3, < 3)
+    tilt (2.0.9)
+    webrick (1.3.1)
+
+PLATFORMS
+  ruby
+
+DEPENDENCIES
+  riemann-dash (= 0.2.14)
+
+BUNDLED WITH
+   2.1.4