update lvgl simulator on ubuntu

lv_sim_linux/lvgl/tests/unity/yaml_helper.rb

@@ -0,0 +1,22 @@
+# ==========================================
+#   Unity Project - A Test Framework for C
+#   Copyright (c) 2007 Mike Karlesky, Mark VanderVoord, Greg Williams
+#   [Released under MIT License. Please refer to license.txt for details]
+# ==========================================
+
+require 'yaml'
+
+module YamlHelper
+  def self.load(body)
+    if YAML.respond_to?(:unsafe_load)
+      YAML.unsafe_load(body)
+    else
+      YAML.load(body)
+    end
+  end
+
+  def self.load_file(file)
+    body = File.read(file)
+    self.load(body)
+  end
+end