Bluetooth: mgmt: multi-adv for trigger_le_scan()

This patch ensures that instance advertising is correctly canceled
before starting a le scan.

Signed-off-by: Florian Grandel <fgrandel@gmail.com>
Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
diff --git a/net/bluetooth/mgmt.c b/net/bluetooth/mgmt.c
index 57e27b7..f44c6e3 100644
--- a/net/bluetooth/mgmt.c
+++ b/net/bluetooth/mgmt.c
@@ -4215,6 +4215,7 @@
 			return false;
 		}
 
+		cancel_adv_timeout(hdev);
 		disable_advertising(req);
 	}