MFC: allow FreeBSD/amd64 to boot on certain Dell machines that have more than 8 entries in the 0xe821 map.  This includes things like ACPI exclusion zones, memory segments and recoverable memory segments after the kernel has booted.
MFC: allow FreeBSD/amd64 to boot on certain Dell machines that have more
than 8 entries in the 0xe821 map.  This includes things like ACPI
exclusion zones, memory segments and recoverable memory segments after
the kernel has booted.

jrobhoward/SCADAbase,jrobhoward/SCADAbase,jrobhoward/SCADAbase,jrobhoward/SCADAbase,jrobhoward/SCADAbase,jrobhoward/SCADAbase,jrobhoward/SCADAbase,jrobhoward/SCADAbase,jrobhoward/SCADAbase,jrobhoward/SCADAbase,jrobhoward/SCADAbase