driver core: use initcall_debug to control shutdown info

syscore_shutdown uses initcall_debug to control the debug info output.
It’s a good programming. But device_shutdown doesn’t. The patch changes
device_shutdown to follow the style.
Signed-off-by: Yanmin Zhang <yanmin_zhang@linux.intel.com>
Signed-off-by: ShuoX Liu <shuox.liu@intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

drivers/base/core.c

@@ -1840,10 +1840,12 @@ void device_shutdown(void)
 		pm_runtime_barrier(dev);
 
 		if (dev->bus && dev->bus->shutdown) {
-			dev_dbg(dev, "shutdown\n");
+			if (initcall_debug)
+				dev_info(dev, "shutdown\n");
 			dev->bus->shutdown(dev);
 		} else if (dev->driver && dev->driver->shutdown) {
-			dev_dbg(dev, "shutdown\n");
+			if (initcall_debug)
+				dev_info(dev, "shutdown\n");
 			dev->driver->shutdown(dev);
 		}