CVE-2026-90098 net: sparx5: fix sleep in atomic context in MAC table access

In the Linux kernel, the following vulnerability has been resolved: net: sparx5: fix sleep in atomic context in MAC table access sparx5setrxmode runs with netifaddrlockbh held and iterates dev-mc via devmcsync, which per address calls sparx5mcsync / sparx5mcunsync - sparx5mactlearn /...