CVE-2025-37866 mlxbf-bootctl: use sysfs_emit_at() in secure_boot_fuse_state_show()

In the Linux kernel, the following vulnerability has been resolved: mlxbf-bootctl: use sysfsemitat in securebootfusestateshow A warning is seen when running the latest kernel on a BlueField SOC: 251.512704 ------------ cut here ------------ 251.512711 invalid sysfsemit: buf:0000000003aa32ae...