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/applications/office/ledger-web/Gemfile.lock

@@ -0,0 +1,61 @@
+GEM
+  remote: https://rubygems.org/
+  specs:
+    backports (3.14.0)
+    database_cleaner (1.7.0)
+    diff-lcs (1.3)
+    directory_watcher (1.5.1)
+    ledger_web (1.5.2)
+      database_cleaner
+      directory_watcher (~> 1.5.1)
+      pg
+      rack (>= 1.3.6)
+      rspec
+      sequel
+      sinatra
+      sinatra-contrib
+      sinatra-session
+    multi_json (1.13.1)
+    mustermann (1.0.3)
+    pg (1.1.4)
+    rack (2.0.7)
+    rack-protection (2.0.5)
+      rack
+    rspec (3.8.0)
+      rspec-core (~> 3.8.0)
+      rspec-expectations (~> 3.8.0)
+      rspec-mocks (~> 3.8.0)
+    rspec-core (3.8.0)
+      rspec-support (~> 3.8.0)
+    rspec-expectations (3.8.3)
+      diff-lcs (>= 1.2.0, < 2.0)
+      rspec-support (~> 3.8.0)
+    rspec-mocks (3.8.0)
+      diff-lcs (>= 1.2.0, < 2.0)
+      rspec-support (~> 3.8.0)
+    rspec-support (3.8.0)
+    sequel (5.19.0)
+    sinatra (2.0.5)
+      mustermann (~> 1.0)
+      rack (~> 2.0)
+      rack-protection (= 2.0.5)
+      tilt (~> 2.0)
+    sinatra-contrib (2.0.5)
+      backports (>= 2.8.2)
+      multi_json
+      mustermann (~> 1.0)
+      rack-protection (= 2.0.5)
+      sinatra (= 2.0.5)
+      tilt (>= 1.3, < 3)
+    sinatra-session (1.0.0)
+      sinatra (>= 1.0)
+    tilt (2.0.9)
+
+PLATFORMS
+  ruby
+
+DEPENDENCIES
+  ledger_web
+
+BUNDLED WITH
+   2.1.4