Use the correct config keys in suppressing cloud-init output during boot of live server ISO.

debian/changelog

@@ -1,3 +1,10 @@
+livecd-rootfs (2.716) UNRELEASED; urgency=medium
+
+  * Use the correct config keys in suppressing cloud-init output during boot
+    of live server ISO.
+
+ -- Michael Hudson-Doyle <michael.hudson@ubuntu.com>  Wed, 10 Mar 2021 12:03:17 +1300
+
 livecd-rootfs (2.715) hirsute; urgency=medium
 
   [ Gauthier Jolly ]

live-build/ubuntu-server/includes.binary/overlay/etc/cloud/cloud.cfg.d/06_quiet.cfg

@@ -1,4 +1,4 @@
 output: {all: '>> /var/log/cloud-init-output.log'}
-no_keys_to_console: true
+no_ssh_fingerprints: true
 ssh:
   emit_keys_to_console: false