tools: re-sync CPUID leaf 7 tables

tools: re-sync CPUID leaf 7 tables

Bring libxl's in line with the public header, and update xen-cpuid's to
the latest information available in Intel's documentation (SDM ver 068
and ISA extensions ver 035), with (as before) the exception on MAWAU.

Some pre-existing strings get changed to match SDM naming. This should
be benign in xen-cpuid, and I hope it's also acceptable in libxl, where
people actually using the slightly wrong names would have to update
their guest config files.

Signed-off-by: Jan Beulich <jbeulich@suse.com>
Acked-by: Andrew Cooper <andrew.cooper3@citrix.com>