Add Planet OEM.

Change-Id: I53a6ed10ec2cf77c958b4482f8475da1683ed291
diff --git a/_oem/planet.markdown b/_oem/planet.markdown
new file mode 100644
index 0000000..c24056e
--- /dev/null
+++ b/_oem/planet.markdown
@@ -0,0 +1,4 @@
+---
+layout: device
+oem: Planet
+---