update changelog.

Author: TheRealFalcon

debian/changelog

@@ -2,8 +2,11 @@ cloud-init (20.4.1-0ubuntu1~16.04.2) UNRELEASED; urgency=medium
 
   * drop the following cherry-picks now included:
     + cpick-4f62ae8d-Fix-regression-with-handling-of-IMDS-ssh-keys-760
+  * refresh patches:
+   + debian/patches/azure-apply-network-config-false.patch
+   + debian/patches/openstack-no-network-config.patch
 
- -- James Falcon <james.falcon@canonical.com>  Mon, 22 Mar 2021 10:52:19 -0500
+ -- James Falcon <james.falcon@canonical.com>  Mon, 22 Mar 2021 10:52:21 -0500
 
 cloud-init (20.4.1-0ubuntu1~16.04.1) xenial; urgency=medium