fix(bt): initialize BLE Log in host-only mode

Initialize and deinitialize BLE Log from the Bluedroid host lifecycle when the local
controller is disabled. Guard controller mbuf handling with BLE_LOG_LL_ENABLED so host-
only builds do not depend on controller headers.

Update NimBLE to b6e2f93db269ad2bba8715953cb56f93bae4fc2f to provide the corresponding
host-only initialization. Combine the host initialization fix and the final NimBLE
revision into one prerequisite commit.

components/bt/common/ble_log/src/ble_log_lbm.c

@@ -13,9 +13,9 @@
 #include "ble_log_rt.h"
 #include "esp_log.h"
 
-#if CONFIG_SOC_ESP_NIMBLE_CONTROLLER
+#if CONFIG_BLE_LOG_LL_ENABLED && CONFIG_SOC_ESP_NIMBLE_CONTROLLER
 #include "os/os_mbuf.h"
-#endif /* CONFIG_SOC_ESP_NIMBLE_CONTROLLER */
+#endif /* CONFIG_BLE_LOG_LL_ENABLED && CONFIG_SOC_ESP_NIMBLE_CONTROLLER */
 
 /* VARIABLE */
 #define TAG "ble_log"
@@ -200,13 +200,13 @@ void ble_log_lbm_write_trans(ble_log_prph_trans_t **trans, ble_log_src_t src_cod
         BLE_LOG_MEMCPY(buf + BLE_LOG_FRAME_HEAD_LEN, addr, len);
     }
     if (len_append) {
-#if CONFIG_SOC_ESP_NIMBLE_CONTROLLER
+#if CONFIG_BLE_LOG_LL_ENABLED && CONFIG_SOC_ESP_NIMBLE_CONTROLLER
         if (omdata) {
             os_mbuf_copydata((struct os_mbuf *)addr_append, 0,
                              len_append, buf + BLE_LOG_FRAME_HEAD_LEN + len);
         }
         else
-#endif /* CONFIG_SOC_ESP_NIMBLE_CONTROLLER */
+#endif /* CONFIG_BLE_LOG_LL_ENABLED && CONFIG_SOC_ESP_NIMBLE_CONTROLLER */
         {
             BLE_LOG_MEMCPY(buf + BLE_LOG_FRAME_HEAD_LEN + len, addr_append, len_append);
         }

components/bt/host/bluedroid/api/esp_bt_main.c

@@ -19,6 +19,9 @@
 #include "bt_common.h"
 #include "bt_osal.h"
 #include "bt_prf_task.h"
+#if CONFIG_BLE_LOG_ENABLED && !CONFIG_BT_CONTROLLER_ENABLED
+#include "ble_log.h"
+#endif
 
 static esp_bluedroid_status_t s_bt_host_state = ESP_BLUEDROID_STATUS_UNINITIALIZED;
 
@@ -246,6 +249,12 @@ esp_err_t esp_bluedroid_init_with_cfg(esp_bluedroid_config_t *cfg)
     }
 #endif
 
+#if CONFIG_BLE_LOG_ENABLED && !CONFIG_BT_CONTROLLER_ENABLED
+    if (!ble_log_init()) {
+        LOG_WARN("BLE Log init failed");
+    }
+#endif
+
     s_bt_host_state = ESP_BLUEDROID_STATUS_INITIALIZED;
 
     return ESP_OK;
@@ -274,6 +283,10 @@ esp_err_t esp_bluedroid_deinit(void)
         return ESP_ERR_NO_MEM;
     }
 
+#if CONFIG_BLE_LOG_ENABLED && !CONFIG_BT_CONTROLLER_ENABLED
+    ble_log_deinit();
+#endif
+
     msg.sig = BTC_SIG_API_CALL;
     msg.pid = BTC_PID_MAIN_INIT;
     msg.act = BTC_MAIN_ACT_DEINIT;