MFH: r553338 r553339

Update to 9.11.24 & 9.16.8.

Changes: https://downloads.isc.org/isc/bind9/9.11.24/RELEASE-NOTES-bind-9.11.24.html
Changes: https://downloads.isc.org/isc/bind9/9.16.8/doc/arm/html/notes.html#notes-for-bind-9-16-8