[Bluetooth] Define .kobj.k_name for the fake device

The PCMCIA devices are not devices for the kernel and the bt3c_cs
driver uses a fake device for calling request_firmware(). The fake
device initialization must also set .kobj.k_name to prevent an oops
until PCMCIA devices are fully integrated into the driver model.

drivers/bluetooth/bt3c_cs.c

@@ -491,6 +491,9 @@ static int bt3c_hci_ioctl(struct hci_dev *hdev, unsigned int cmd, unsigned long
 
 static struct device bt3c_device = {
 	.bus_id = "pcmcia",
+	.kobj = {
+		.k_name = "bt3c"
+	}
 };