fix(security): add CVE-2025-0647 for Cortex-X4

This patch mitigates CVE-2025-0647 for Cortex-X4 CPU.

Arm Security Bulletin Document:
https://developer.arm.com/documentation/111546

Change-Id: I585a7ea516515fe16a3eca907695728068cef611
Signed-off-by: John Powell <john.powell@arm.com>
Signed-off-by: Govindraj Raja <govindraj.raja@arm.com>