changelog: Update with new version to describe the revert

Change-Id: Ife907cdc9a86b6e78a4154daa2847b42b4bfbdc6
diff --git a/debian/changelog b/debian/changelog
index 2ecb3cc..7a22a77 100644
--- a/debian/changelog
+++ b/debian/changelog
@@ -1,3 +1,9 @@
+mendel-minimal (3-1) mendel-beaker; urgency=medium
+
+  * Reverts the multistrap source lists change below.
+
+ -- AIY Projects <support-aiyprojects@google.com>  Thu, 24 Jan 2019 17:13:00 -0800
+
 mendel-minimal (2-1) mendel-beaker; urgency=medium
 
   * Collapes multistrap source lists into single file