reboot: arm: change reboot_mode to use enum reboot_mode

Preparing to move the parsing of reboot= to generic kernel code forces
the change in reboot_mode handling to use the enum.

[akpm@linux-foundation.org: fix arch/arm/mach-socfpga/socfpga.c]
Signed-off-by: Robin Holt <holt@sgi.com>
Cc: Russell King <rmk+kernel@arm.linux.org.uk>
Cc: Russ Anderson <rja@sgi.com>
Cc: Robin Holt <holt@sgi.com>
Cc: H. Peter Anvin <hpa@zytor.com>
Cc: Guan Xuetao <gxt@mprc.pku.edu.cn>
Acked-by: Russell King <rmk+kernel@arm.linux.org.uk>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
diff --git a/drivers/power/reset/restart-poweroff.c b/drivers/power/reset/restart-poweroff.c
index 059cd15..5758033 100644
--- a/drivers/power/reset/restart-poweroff.c
+++ b/drivers/power/reset/restart-poweroff.c
@@ -15,11 +15,12 @@
 #include <linux/platform_device.h>
 #include <linux/of_platform.h>
 #include <linux/module.h>
+#include <linux/reboot.h>
 #include <asm/system_misc.h>
 
 static void restart_poweroff_do_poweroff(void)
 {
-	arm_pm_restart('h', NULL);
+	arm_pm_restart(REBOOT_HARD, NULL);
 }
 
 static int restart_poweroff_probe(struct platform_device *pdev)