input: keyreset: switch to orderly_reboot

Prior restart function would make a call to sys_sync and then
execute a kernel reset.  Rather than call the sync directly,
thus necessitating this driver to be builtin, call orderly_reboot,
which will take care of the file system sync.

Note: since CONFIG_INPUT Kconfig is tristate, this driver can be built
as module, despite being marked bool.

Signed-off-by: Eric Ernst <eric.ernst@linux.intel.com>
diff --git a/drivers/input/keyreset.c b/drivers/input/keyreset.c
index 7fbf724..7e5222a 100644
--- a/drivers/input/keyreset.c
+++ b/drivers/input/keyreset.c
@@ -32,8 +32,7 @@
 
 static void do_restart(struct work_struct *unused)
 {
-	sys_sync();
-	kernel_restart(NULL);
+	orderly_reboot();
 }
 
 static void do_reset_fn(void *priv)