watchdog: sp805_wdt depends on ARM

The SP805 driver is only used by the Spear machines, and uses
writel_relaxed, which is not available on all architectures.

The dependency from CONFIG_ARM avoids compilation problems under
randomconfig when CONFIG_ARM_AMBA is enabled for x86 builds.

Signed-off-by: Alessandro Rubini <[e-mail]>
Acked-by: Giancarlo Asnaghi <[e-mail]>
Signed-off-by: Davide Ciminaghi <[e-mail]>
Acked-by: Linus Walleij <[e-mail]>
Acked-by: Viresh Kumar <[e-mail]>
Signed-off-by: H. Peter Anvin <[e-mail]>
Signed-off-by: Wim Van Sebroeck <[e-mail]>

drivers/watchdog/Kconfig

···
 
 config ARM_SP805_WATCHDOG
 	tristate "ARM SP805 Watchdog"
-	depends on ARM_AMBA
+	depends on ARM && ARM_AMBA
 	select WATCHDOG_CORE
 	help
 	  ARM Primecell SP805 Watchdog timer. This will reboot your system when