New config option introduced by "arm64: Add work around for Arm
Cortex-A55 Erratum 1024718"

BugLink: https://bugs.launchpad.net/bugs/1775477Signed-off-by: Stefan Bader <stefan.bader@canonical.com>
Acked-by: Kleber Sacilotto de Souza <kleber.souza@canonical.com>
Signed-off-by: Khalid Elmously <khalid.elmously@canonical.com>