Bluetooth: Declare btusb_table[] and blacklist_table[] as const

The btusb_table[] and blacklist_table[] USB device tables can be
declared as const.

Signed-off-by: Marcel Holtmann <[e-mail]>
Signed-off-by: Johan Hedberg <[e-mail]>

drivers/bluetooth/btusb.c

···
 #define BTUSB_ATH3012		0x80
 #define BTUSB_INTEL		0x100
 
-static struct usb_device_id btusb_table[] = {
+static const struct usb_device_id btusb_table[] = {
 	/* Generic Bluetooth USB device */
 	{ USB_DEVICE_INFO(0xe0, 0x01, 0x01) },
 
···
 
 MODULE_DEVICE_TABLE(usb, btusb_table);
 
-static struct usb_device_id blacklist_table[] = {
+static const struct usb_device_id blacklist_table[] = {
 	/* CSR BlueCore devices */
 	{ USB_DEVICE(0x0a12, 0x0001), .driver_info = BTUSB_CSR },