Bluetooth: Controller: Fix return value for apto with illegal handles

If the connection handle given to a Read/Write Authenticated Payload
Timeout HCI command is a CIS or BIS handle, the error returned has to
be BT_HCI_ERR_CMD_DISALLOWED with the new TCRL

Fixes EBQ test failures in HCI/BIS/BI-14-C, HCI/BIS/BI-15-C,
HCI/CIS/BI-20-C and HCI/CIS/BI-22-C

Signed-off-by: Troels Nilsson <trnn@demant.com>

subsys/bluetooth/controller/ll_sw/ull_conn.c

@@ -706,6 +706,12 @@ uint8_t ll_apto_get(uint16_t handle, uint16_t *apto)
 {
 	struct ll_conn *conn;
 
+#if defined(CONFIG_BT_CTLR_ISO)
+	if (IS_CIS_HANDLE(handle) || IS_SYNC_ISO_HANDLE(handle) || IS_ADV_ISO_HANDLE(handle)) {
+		return BT_HCI_ERR_CMD_DISALLOWED;
+	}
+#endif /* CONFIG_BT_CTLR_ISO */
+
 	conn = ll_connected_get(handle);
 	if (!conn) {
 		return BT_HCI_ERR_UNKNOWN_CONN_ID;
@@ -726,6 +732,12 @@ uint8_t ll_apto_set(uint16_t handle, uint16_t apto)
 {
 	struct ll_conn *conn;
 
+#if defined(CONFIG_BT_CTLR_ISO)
+	if (IS_CIS_HANDLE(handle) || IS_SYNC_ISO_HANDLE(handle) || IS_ADV_ISO_HANDLE(handle)) {
+		return BT_HCI_ERR_CMD_DISALLOWED;
+	}
+#endif /* CONFIG_BT_CTLR_ISO */
+
 	conn = ll_connected_get(handle);
 	if (!conn) {
 		return BT_HCI_ERR_UNKNOWN_CONN_ID;