feat(ble): support configurable rxbuf opt feat on ESP32-C6

Author: ChrysalisChenJ

components/bt/controller/esp32c6/Kconfig.in

@@ -818,3 +818,7 @@ config BT_LE_CTRL_ADV_DATA_LENGTH_ZERO_AUX
         When this option is enabled, auxiliary packets will be present in the events of
         'Non-Connectable and Non-Scannable' regardless of whether the advertising length is 0.
         If this option is not enabled, auxiliary packets will only be present when the advertising length is not 0.
+
+config BT_LE_RXBUF_OPT_ENABLED
+    bool "Enable rxbuf optimization feature"
+    default y

components/bt/controller/esp32c6/ble.c

@@ -47,6 +47,9 @@ void adv_stack_enableScanReqRxdVsEvent(bool en);
 void conn_stack_enableChanMapUpdCompVsEvent(bool en);
 void sleep_stack_enableWakeupVsEvent(bool en);
 #endif // (CONFIG_BT_NIMBLE_ENABLED || CONFIG_BT_BLUEDROID_ENABLED)
+#if CONFIG_BT_LE_RXBUF_OPT_ENABLED
+extern void mmgmt_enableRxbufOptFeature(void);
+#endif // CONFIG_BT_LE_RXBUF_OPT_ENABLED
 
 /* Local functions definition
  ***************************************************************************
@@ -143,6 +146,10 @@ int ble_stack_enable(void)
     ble_stack_enableVsEvents(true);
 #endif // (CONFIG_BT_NIMBLE_ENABLED || CONFIG_BT_BLUEDROID_ENABLED)
 
+#if CONFIG_BT_LE_RXBUF_OPT_ENABLED
+    mmgmt_enableRxbufOptFeature();
+#endif // CONFIG_BT_LE_RXBUF_OPT_ENABLED
+
     return 0;
 }