Fixed multi_heap_free failed during setting the value of the characteristic in BLE Library. (#2789)

libraries/BLE/src/BLECharacteristic.cpp

@@ -628,7 +628,9 @@ void BLECharacteristic::setValue(uint8_t* data, size_t length) {
 		log_e("Size %d too large, must be no bigger than %d", length, ESP_GATT_MAX_ATTR_LEN);
 		return;
 	}
+	m_semaphoreSetValue.take();  
 	m_value.setValue(data, length);
+	m_semaphoreSetValue.give();  
 	log_v("<< setValue");
 } // setValue
 

libraries/BLE/src/BLECharacteristic.h

@@ -117,6 +117,7 @@ private:
 	void                 setHandle(uint16_t handle);
 	FreeRTOS::Semaphore m_semaphoreCreateEvt = FreeRTOS::Semaphore("CreateEvt");
 	FreeRTOS::Semaphore m_semaphoreConfEvt   = FreeRTOS::Semaphore("ConfEvt");
+	FreeRTOS::Semaphore m_semaphoreSetValue  = FreeRTOS::Semaphore("SetValue");  
 }; // BLECharacteristic