power: reset: corrections for simple syscon reboot driver

This patch is to fix some bugs in reboot driver. Which includes auto selection
of the MFD_SYSCON for the driver, use of container to locate restart handler,
correction of the count down failure timer and ordering of the header file.

Signed-off-by: Feng Kan <fkan@apm.com>
Reviewed-by: Guenter Roeck <linux@roeck-us.net>
[ sre: return err instead of 0 in syscon_reboot_probe() ]
Signed-off-by: Sebastian Reichel <sre@kernel.org>
diff --git a/drivers/power/reset/Kconfig b/drivers/power/reset/Kconfig
index addb26a..3b451e1 100644
--- a/drivers/power/reset/Kconfig
+++ b/drivers/power/reset/Kconfig
@@ -120,6 +120,7 @@
 
 config POWER_RESET_SYSCON
 	bool "Generic SYSCON regmap reset driver"
-	depends on POWER_RESET && MFD_SYSCON && OF
+	depends on POWER_RESET && OF
+	select MFD_SYSCON
 	help
 	  Reboot support for generic SYSCON mapped register reset.