GDS_CTRL is introduced by the August 2023 microcode. GDS_NO is for current
and future processors not susceptible to GDS.
This is part of XSA-435 / CVE-2022-40982
Signed-off-by: Andrew Cooper <andrew.cooper3@citrix.com>
Acked-by: Jan Beulich <jbeulich@suse.com>