UM: cpuinfo: Fix a warning for CONFIGCPUMASKOFFSTACK
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 v5.4.220 by commit cd251d39b13485eb94ee65bb000d024e02c00e45. For more details please see the references link.