Bluetooth: Fix EIR data clearing when powering off

When powering off we should assume that the EIR data isn't valid
anymore. This patch makes sure it gets cleared in hci_dev_do_close and
thereby ensures that a correct new EIR is recreated when powering on
again.

Signed-off-by: Johan Hedberg <johan.hedberg@intel.com>
Acked-by: Marcel Holtmann <marcel@holtmann.org>
diff --git a/net/bluetooth/hci_core.c b/net/bluetooth/hci_core.c
index e1dadee..2d75ffb 100644
--- a/net/bluetooth/hci_core.c
+++ b/net/bluetooth/hci_core.c
@@ -794,6 +794,8 @@
 	/* Clear flags */
 	hdev->flags = 0;
 
+	memset(hdev->eir, 0, sizeof(hdev->eir));
+
 	hci_req_unlock(hdev);
 
 	hci_dev_put(hdev);