CVE-2026-98376 bpf: Use array_map_meta_equal for percpu array inner map replacement

In the Linux kernel, the following vulnerability has been resolved: bpf: Use arraymapmetaequal for percpu array inner map replacement percpuarraymapops.mapmetaequal points to the generic bpfmapmetaequal, which does not compare maxentries. When a percpu array serves as an inner map, replacing it...