smc91x: add __init markings to smc_drv_probe()

The smc_drv_probe() is the platform_driver probe function and it is only
called during init.  Further, it calls smc_probe() which is marked as __init
already.
Signed-off-by: Mike Frysinger <vapier@gentoo.org>
Signed-off-by: Jeff Garzik <jgarzik@redhat.com>

drivers/net/smc91x.c

@@ -2123,7 +2123,7 @@ static void smc_release_datacs(struct platform_device *pdev, struct net_device *
  *	0 --> there is a device
  *	anything else, error
  */
-static int smc_drv_probe(struct platform_device *pdev)
+static int __init smc_drv_probe(struct platform_device *pdev)
 {
 	struct smc91x_platdata *pd = pdev->dev.platform_data;
 	struct smc_local *lp;