fix InternalValidate error on cpu.mode block

Fixes error:

* resource libvirt_domain: cpu: TypeMap with Elem *Resource not supported,use
TypeList/TypeSet with Elem *Resource or TypeMap with Elem *Schema

Author: dmacvicar

website/.bundle/config

@@ -0,0 +1,2 @@
+---
+BUNDLE_PATH: "vendor"

website/Gemfile

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

website/Gemfile.lock

@@ -0,0 +1,100 @@
+GEM
+  remote: https://rubygems.org/
+  specs:
+    activesupport (5.0.7.2)
+      concurrent-ruby (~> 1.0, >= 1.0.2)
+      i18n (>= 0.7, < 2)
+      minitest (~> 5.1)
+      tzinfo (~> 1.1)
+    addressable (2.7.0)
+      public_suffix (>= 2.0.2, < 5.0)
+    backports (3.15.0)
+    coffee-script (2.4.1)
+      coffee-script-source
+      execjs
+    coffee-script-source (1.12.2)
+    concurrent-ruby (1.1.5)
+    contracts (0.13.0)
+    dotenv (2.7.5)
+    erubis (2.7.0)
+    execjs (2.7.0)
+    fast_blank (1.0.0)
+    fastimage (2.1.7)
+    ffi (1.11.1)
+    haml (5.1.2)
+      temple (>= 0.8.0)
+      tilt
+    hamster (3.0.0)
+      concurrent-ruby (~> 1.0)
+    hashie (3.6.0)
+    i18n (0.9.5)
+      concurrent-ruby (~> 1.0)
+    kramdown (1.17.0)
+    listen (3.0.8)
+      rb-fsevent (~> 0.9, >= 0.9.4)
+      rb-inotify (~> 0.9, >= 0.9.7)
+    memoist (0.16.0)
+    middleman (4.3.5)
+      coffee-script (~> 2.2)
+      haml (>= 4.0.5)
+      kramdown (~> 1.2)
+      middleman-cli (= 4.3.5)
+      middleman-core (= 4.3.5)
+    middleman-cli (4.3.5)
+      thor (>= 0.17.0, < 2.0)
+    middleman-core (4.3.5)
+      activesupport (>= 4.2, < 5.1)
+      addressable (~> 2.3)
+      backports (~> 3.6)
+      bundler
+      contracts (~> 0.13.0)
+      dotenv
+      erubis
+      execjs (~> 2.0)
+      fast_blank
+      fastimage (~> 2.0)
+      hamster (~> 3.0)
+      hashie (~> 3.4)
+      i18n (~> 0.9.0)
+      listen (~> 3.0.0)
+      memoist (~> 0.14)
+      padrino-helpers (~> 0.13.0)
+      parallel
+      rack (>= 1.4.5, < 3)
+      sassc (~> 2.0)
+      servolux
+      tilt (~> 2.0.9)
+      uglifier (~> 3.0)
+    minitest (5.12.2)
+    padrino-helpers (0.13.3.4)
+      i18n (~> 0.6, >= 0.6.7)
+      padrino-support (= 0.13.3.4)
+      tilt (>= 1.4.1, < 3)
+    padrino-support (0.13.3.4)
+      activesupport (>= 3.1)
+    parallel (1.18.0)
+    public_suffix (4.0.1)
+    rack (2.0.7)
+    rb-fsevent (0.10.3)
+    rb-inotify (0.10.0)
+      ffi (~> 1.0)
+    sassc (2.2.1)
+      ffi (~> 1.9)
+    servolux (0.13.0)
+    temple (0.8.2)
+    thor (0.20.3)
+    thread_safe (0.3.6)
+    tilt (2.0.10)
+    tzinfo (1.2.5)
+      thread_safe (~> 0.1)
+    uglifier (3.2.0)
+      execjs (>= 0.3.0, < 3)
+
+PLATFORMS
+  ruby
+
+DEPENDENCIES
+  middleman
+
+BUNDLED WITH
+   1.17.2