python-memcached needs installed on everything

Since nova.conf references it, everything that installs nova.conf should
have it installed.

recipes/nova-common.rb

@@ -40,6 +40,13 @@ platform_options["common_packages"].each do |pkg|
   end
 end
 
+# required to run more than one consoleauth process
+platform_options["memcache_python_packages"].each do |pkg|
+  package pkg do
+    action :install
+  end
+end
+
 directory "/etc/nova" do
   owner node["nova"]["user"]
   group node["nova"]["group"]

recipes/vncproxy.rb

@@ -29,13 +29,6 @@ platform_options["nova_vncproxy_packages"].each do |pkg|
   end
 end
 
-# required to run more than one consoleauth process
-platform_options["memcache_python_packages"].each do |pkg|
-  package pkg do
-    action :install
-  end
-end
-
 # required for vnc console authentication
 platform_options["nova_vncproxy_consoleauth_packages"].each do |pkg|
   package pkg do