USB: remove warn() macro from usb net drivers

USB should not be having it's own printk macros, so remove warn() and
use the system-wide standard of dev_warn() wherever possible.  In the
few places that will not work out, use a basic printk().

Cc: Jeff Garzik <jgarzik@pobox.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>

diff --git a/drivers/net/usb/catc.c b/drivers/net/usb/catc.c
index 22c17bb..92ff9c8 100644
--- a/drivers/net/usb/catc.c
+++ b/drivers/net/usb/catc.c
@@ -456,7 +456,7 @@
 {
 	struct catc *catc = netdev_priv(netdev);
 
-	warn("Transmit timed out.");
+	dev_warn(&netdev->dev, "Transmit timed out.\n");
 	usb_unlink_urb(catc->tx_urb);
 }
 
@@ -847,7 +847,8 @@
 			dbg("64k Memory\n");
 			break;
 		default:
-			warn("Couldn't detect memory size, assuming 32k");
+			dev_warn(&intf->dev,
+				 "Couldn't detect memory size, assuming 32k\n");
 		case 0x87654321:
 			catc_set_reg(catc, TxBufCount, 4);
 			catc_set_reg(catc, RxBufCount, 16);