Update changelog for beaker

Change-Id: I2a2f968cef231d03d51df53ca65baf590ebfbd60
diff --git a/debian/changelog b/debian/changelog
index 99296cd..b990e3b 100644
--- a/debian/changelog
+++ b/debian/changelog
@@ -1,3 +1,9 @@
+wayland-protocols-imx (1.13+imx-1) mendel-beaker; urgency=medium
+
+  * Cut for beaker branch and version normalization.
+
+ -- AIY Projects <support-aiyprojects@google.com>  Wed, 16 Jan 2019 12:00:00 -0800
+
 wayland-protocols-imx (1.13+imx-0) unstable; urgency=medium
 
   * Initial release