update changelog

debian/changelog

@@ -1,3 +1,11 @@
+livecd-rootfs (2.648) UNRELEASED; urgency=medium
+
+  * Enable cloud-init in live server installer live session.
+  * Remove code for old design for getting autoinstall.yaml.
+  * Add runcmd to extract autoinstall.yaml from user-data.
+
+ -- Michael Hudson-Doyle <michael.hudson@ubuntu.com>  Tue, 03 Mar 2020 15:09:01 +0100
+
 livecd-rootfs (2.647) focal; urgency=medium
 
   * Address snap base regression after snap-tool removal