Register the watchdog as early as possible

configname: CONFIG_GPIO_WATCHDOG_ARCH_INITCALL

Linux Kernel Configuration
└─>Device Drivers
└─>Watchdog Timer Support
└─>Register the watchdog as early as possible
In linux kernel since version 4.1 (release Date: 2015-06-21)  
In some situations, the default initcall level (module_init)
in not early enough in the boot process to avoid the watchdog
to be triggered.
If you say yes here, the initcall level would be raised to
arch_initcall.
If in doubt, say N.