p54: unify ieee80211 device registration

All three drivers (p54pci, p54usb and p54spi) are implementing the
same functionality three times. So, why not put it into the shared library?!

Signed-off-by: Christian Lamparter <chunkeey@web.de>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
diff --git a/drivers/net/wireless/p54/p54pci.c b/drivers/net/wireless/p54/p54pci.c
index 3f9a6b0..46626e5 100644
--- a/drivers/net/wireless/p54/p54pci.c
+++ b/drivers/net/wireless/p54/p54pci.c
@@ -565,12 +565,9 @@
 	if (err)
 		goto err_free_common;
 
-	err = ieee80211_register_hw(dev);
-	if (err) {
-		printk(KERN_ERR "%s (p54pci): Cannot register netdevice\n",
-		       pci_name(pdev));
+	err = p54_register_common(dev, &pdev->dev);
+	if (err)
 		goto err_free_common;
-	}
 
 	return 0;