Merge pull request #10 from Microsoft/hotfix/xcode-recipe

Update xcode recipe to use new default attribute

Author: jazaval

recipes/xcode.rb

@@ -1,3 +1,3 @@
-xcode node['macos']['xcode']['major_version'] do
+xcode node['macos']['xcode']['version'] do
   ios_simulators node['macos']['xcode']['simulator']['major_version']
 end