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/package-management/fpm/Gemfile.lock

@@ -0,0 +1,43 @@
+GEM
+  remote: https://rubygems.org/
+  specs:
+    arr-pm (0.0.11)
+      cabin (> 0)
+    backports (3.21.0)
+    cabin (0.9.0)
+    clamp (1.0.1)
+    dotenv (2.7.6)
+    fpm (1.13.0)
+      arr-pm (~> 0.0.11)
+      backports (>= 2.6.2)
+      cabin (>= 0.6.0)
+      clamp (~> 1.0.0)
+      git (>= 1.3.0, < 2.0)
+      json (>= 1.7.7, < 3.0)
+      pleaserun (~> 0.0.29)
+      rexml
+      stud
+    git (1.8.1)
+      rchardet (~> 1.8)
+    insist (1.0.0)
+    json (2.5.1)
+    mustache (0.99.8)
+    pleaserun (0.0.32)
+      cabin (> 0)
+      clamp
+      dotenv
+      insist
+      mustache (= 0.99.8)
+      stud
+    rchardet (1.8.0)
+    rexml (3.2.5)
+    stud (0.0.23)
+
+PLATFORMS
+  ruby
+
+DEPENDENCIES
+  fpm
+
+BUNDLED WITH
+   2.1.4