This dependency was floating, which results in non-deterministic builds. Add
a configure argument and associated PACKAGECONFIG to fix this.
The libxml dep is only needed when bind was built with a dep on libxml due to
its httpstats feature. So, when you enable the httpstats config in bind, and
want to build dhcp, be sure to also enable the bind-httpstats config in dhcp.
Signed-off-by: Christopher Larson <chris_larson@mentor.com> Signed-off-by: Ross Burton <ross.burton@intel.com>
