watchdog/hpwdt: Enable HP_WATCHDOG for ARM64 systems.

Enable HP_WATCHDOG for ARM64 systems.
HPWDT_NMI_DECODING requires X86 as NMI handlers are X86 specific.
Signed-off-by: Jerry Hoemann <jerry.hoemann@hpe.com>
Reviewed-by: Guenter Roeck <linux@roeck-us.net>
Link: https://lore.kernel.org/r/20220820202821.1263837-3-jerry.hoemann@hpe.comSigned-off-by: Guenter Roeck <linux@roeck-us.net>
Signed-off-by: Wim Van Sebroeck <wim@linux-watchdog.org>

drivers/watchdog/Kconfig

@@ -1315,7 +1315,7 @@ config IT87_WDT
 config HP_WATCHDOG
 	tristate "HP ProLiant iLO2+ Hardware Watchdog Timer"
 	select WATCHDOG_CORE
-	depends on X86 && PCI
+	depends on (ARM64 || X86) && PCI
 	help
 	  A software monitoring watchdog and NMI handling driver. This driver
 	  will detect lockups and provide a stack trace. This is a driver that
@@ -1325,7 +1325,7 @@ config HP_WATCHDOG
 
 config HPWDT_NMI_DECODING
 	bool "NMI support for the HP ProLiant iLO2+ Hardware Watchdog Timer"
-	depends on HP_WATCHDOG
+	depends on X86 && HP_WATCHDOG
 	default y
 	help
 	  Enables the NMI handler for the watchdog pretimeout NMI and the iLO