fix(nimble): Enable legacy VHCI support

[lucasssvaz]

Description

This pull request adds support for legacy VHCI (Virtual Host Controller Interface) mode in the NimBLE Bluetooth stack across multiple ESP32 platform configuration files. The main change is the enabling of the CONFIG_BT_NIMBLE_LEGACY_VHCI_ENABLE option, which may improve compatibility with legacy Bluetooth controller interfaces.

Related

Fixes espressif/arduino-esp32#11716

[lyusupov]

@lucasssvaz

Not sure that this commit f6c9202
gives positive effect necessary.

For instance, there are still no VHCI symbols for C5 in artifacts section of the Actions build :
https://github.com/espressif/esp32-arduino-lib-builder/actions/runs/16936720969

$ pwd
/tmp/tools/esp32-arduino-libs/esp32c5/lib
$ nm libbt.a | grep -e esp_vhci -e nimble
         U nimble_port_get_dflt_eventq
nm: bt_hci_log.c.obj: no symbols
nm: ble_log_spi_out.c.obj: no symbols
nm: esp_ble_mesh_generic_model_api.c.obj: no symbols
nm: esp_ble_mesh_lighting_model_api.c.obj: no symbols
nm: esp_ble_mesh_sensor_model_api.c.obj: no symbols
nm: esp_ble_mesh_time_scene_model_api.c.obj: no symbols
nm: btc_ble_mesh_ble.c.obj: no symbols
nm: btc_ble_mesh_generic_model.c.obj: no symbols
nm: btc_ble_mesh_lighting_model.c.obj: no symbols
nm: btc_ble_mesh_sensor_model.c.obj: no symbols
nm: btc_ble_mesh_time_scene_model.c.obj: no symbols
nm: ecc_platform_specific.c.obj: no symbols
nm: settings_nvs.c.obj: no symbols
nm: settings_uid.c.obj: no symbols
nm: settings.c.obj: no symbols
nm: ble_adv.c.obj: no symbols
nm: cfg_cli.c.obj: no symbols
nm: fast_prov.c.obj: no symbols
nm: friend.c.obj: no symbols
nm: health_cli.c.obj: no symbols
nm: lpn.c.obj: no symbols
nm: prov_node.c.obj: no symbols
nm: prov_pvnr.c.obj: no symbols
nm: proxy_client.c.obj: no symbols
nm: proxy_server.c.obj: no symbols
nm: pvnr_mgmt.c.obj: no symbols
nm: test.c.obj: no symbols
nm: generic_client.c.obj: no symbols
nm: lighting_client.c.obj: no symbols
nm: sensor_client.c.obj: no symbols
nm: time_scene_client.c.obj: no symbols
nm: generic_server.c.obj: no symbols
nm: lighting_server.c.obj: no symbols
nm: sensor_server.c.obj: no symbols
nm: server_common.c.obj: no symbols
nm: state_binding.c.obj: no symbols
nm: state_transition.c.obj: no symbols
nm: time_scene_server.c.obj: no symbols
nm: esp_ble_mesh_agg_model_api.c.obj: no symbols
nm: esp_ble_mesh_brc_model_api.c.obj: no symbols
nm: esp_ble_mesh_df_model_api.c.obj: no symbols
nm: esp_ble_mesh_lcd_model_api.c.obj: no symbols
nm: esp_ble_mesh_odp_model_api.c.obj: no symbols
nm: esp_ble_mesh_prb_model_api.c.obj: no symbols
nm: esp_ble_mesh_rpr_model_api.c.obj: no symbols
nm: esp_ble_mesh_sar_model_api.c.obj: no symbols
nm: esp_ble_mesh_srpl_model_api.c.obj: no symbols
nm: esp_ble_mesh_mbt_model_api.c.obj: no symbols
nm: btc_ble_mesh_agg_model.c.obj: no symbols
nm: btc_ble_mesh_brc_model.c.obj: no symbols
nm: btc_ble_mesh_df_model.c.obj: no symbols
nm: btc_ble_mesh_lcd_model.c.obj: no symbols
nm: btc_ble_mesh_mbt_model.c.obj: no symbols
nm: btc_ble_mesh_odp_model.c.obj: no symbols
nm: btc_ble_mesh_prb_model.c.obj: no symbols
nm: btc_ble_mesh_rpr_model.c.obj: no symbols
nm: btc_ble_mesh_sar_model.c.obj: no symbols
nm: btc_ble_mesh_srpl_model.c.obj: no symbols
hci_driver_nimble.c.obj:
nm: transport.c.obj: no symbols
nm: ble_svc_hid.c.obj: no symbols
nm: ble_svc_cte.c.obj: no symbols
nm: ble_hs_shutdown.c.obj: no symbols
         U nimble_port_get_dflt_eventq
         U nimble_port_get_dflt_eventq
nm: ble_hs_periodic_sync.c.obj: no symbols
nm: ble_ead.c.obj: no symbols
nm: ble_aes_ccm.c.obj: no symbols
nm: ble_l2cap_coc.c.obj: no symbols
nm: ble_hs_resolv.c.obj: no symbols
nm: ble_store_ram.c.obj: no symbols
nm: ble_store_nvs.c.obj: no symbols
nm: ble_gattc_cache.c.obj: no symbols
nm: ble_gattc_cache_conn.c.obj: no symbols
nm: ble_eatt.c.obj: no symbols
nimble_port.c.obj:
00000000 T esp_nimble_deinit
00000000 T esp_nimble_init
00000000 T nimble_port_deinit
00000000 T nimble_port_get_dflt_eventq
00000000 T nimble_port_init
00000000 T nimble_port_run
00000000 T nimble_port_stop
00000000 t nimble_port_stop_cb
nimble_port_freertos.c.obj:
00000000 T esp_nimble_disable
00000000 T esp_nimble_enable
00000000 T nimble_port_freertos_deinit
00000000 T nimble_port_freertos_init

[lucasssvaz]

@lyusupov Indeed, you are right. From what I see these VHCI functions depend only on CONFIG_BT_CONTROLLER_ENABLED and CONFIG_BT_LE_HCI_INTERFACE_USE_RAM which we already have. They shouldn't depend on any stack settings. I will investigate.