Linux 7.3 caps EFI runtime calls at 120 seconds so one bad firmware call no longer freezes the whole server

A hung EFI runtime service call used to wedge an entire host: the kworker stayed trapped inside firmware while holding efi_runtime_lock until someone rebooted the machine. Linux 7.3 adds a 120-second timeout that declares the firmware ’wedged’ and turns a silent freeze into an explicit dmesg verdict.