powerpc/memhotplug: Add add_pages override for PPC
This is an automated ID intended to aid in discovery of potential security vulnerabilities. The actual impact and attack plausibility have not yet been proven. This ID is fixed in Linux Kernel version v5.15.53 by commit 89296ac435e2cf8a5101f7fab8f0c7b754b92052, it was introduced in version v5.15.34 by commit fddb88bd266f4513abab7c36bca98935c9148a98. For more details please see the references link.