powerpc/watchdog: introduce a NMI watchdog's factor
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 v5.19.4 by commit d1bac78a8c189cf57a7191726052e5c1ff6bb72d. For more details please see the references link.