Bluetooth: BAP: Update encrypt_state when BIG synced after bad code

- When encrypt_state in a receive state of the scan delegator is
  BT_BAP_BIG_ENC_STATE_BAD_CODE, make sure that on synchronization
  encrypt_state is updated to BT_BAP_BIG_ENC_STATE_DEC, as this
  implies that a correct code was provided, so that the broadcast
  assistant is not asked for a correct code any longer.

Signed-off-by: Max Emde <[email protected]>

Author: Max Emde

subsys/bluetooth/audio/bap_broadcast_sink.c

@@ -128,7 +128,8 @@ static void update_recv_state_big_synced(const struct bt_bap_broadcast_sink *sin
 		subgroup_param->bis_sync = sink_subgroup->bis_indexes & sink->indexes_bitfield;
 	}
 
-	if (recv_state->encrypt_state == BT_BAP_BIG_ENC_STATE_BCODE_REQ) {
+	if (recv_state->encrypt_state == BT_BAP_BIG_ENC_STATE_BCODE_REQ ||
+	    recv_state->encrypt_state == BT_BAP_BIG_ENC_STATE_BAD_CODE) {
 		mod_src_param.encrypt_state = BT_BAP_BIG_ENC_STATE_DEC;
 	} else {
 		mod_src_param.encrypt_state = recv_state->encrypt_state;