librem5_defconfig: Set CONFIG_PANIC_TIMEOUT to reboot immediately
The default behavior on kernel panic is to hang indefinitely, which isn't great for a battery powered device where investigating a panic after it happened may not even be feasible. Therefore, set up the kernel so it reboots on panic. For debugging, this can be disabled at runtime by calling `sysctl kernel.panic=0`. A delay before rebooting can be set by replacing `0` with a number of seconds.
panic in 76 minutes and 49 seconds (queued for 23 seconds)2 jobs for