1. Always invoke ble_transport_ll_init in esp_nimble_init().

2. Add ble_transport_ll_init for legacy vhci

nimble/transport/esp_ipc_legacy/src/hci_esp_ipc_legacy.c

@@ -25,3 +25,9 @@ ble_transport_to_ll_acl_impl(struct os_mbuf *om)
     return ble_hci_trans_hs_acl_tx(om);
 }
 
+void
+ble_transport_ll_init(void)
+{
+
+}
+

porting/nimble/src/nimble_port.c

@@ -124,9 +124,7 @@ esp_err_t esp_nimble_init(void)
 #endif
     /* Initialize the host */
     ble_transport_hs_init();
-#if SOC_ESP_NIMBLE_CONTROLLER || CONFIG_BT_CONTROLLER_DISABLED
     ble_transport_ll_init();
-#endif
 
     return ESP_OK;
 }