Security update for the Linux Kernel RT (Live Patch 6 for SUSE Linux Enterprise Micro 6.0)

This update for the SUSE Linux Enterprise kernel 6.4.0-28.1 fixes various security issues The following security issues were fixed: - CVE-2025-38111: net/mdiobus: Fix potential out-of-bounds read/write access (bsc#1249455). - CVE-2025-38352: posix-cpu-timers: fix race between handle_posix_cpu_timers() and posix_cpu_timer_del() (bsc#1249205). - CVE-2025-39742: RDMA: hfi1: fix possible divide-by-zero in find_hw_thread_mask() (bsc#1249480). - CVE-2025-40129: sunrpc: fix null pointer dereference on zero-length checksum (bsc#1253473). - CVE-2025-40186: tcp: Don't call reqsk_fastopen_remove() in tcp_conn_request() (bsc#1253439). The following non security issue was fixed: - bsc#1249241: fix addr_bit_set() issue on big-endian machines BITOP_BE32_SWIZZLE ought to be defined depending on the target's endianess, but the livepatch includes only the little-endian variant. Fix that. (bsc#1249241 bsc#1256928).