Add .gitignore for package.xml

Change-Id: If7ba3163131a36248e794c8363c15df697522f72
diff --git a/.gitignore b/.gitignore
new file mode 100644
index 0000000..a710f7a
--- /dev/null
+++ b/.gitignore
@@ -0,0 +1 @@
+/package.xml