[Telink] Fix temperature-measurement app build

examples/temperature-measurement-app/telink/src/AppTask.cpp

@@ -22,6 +22,9 @@
 
 LOG_MODULE_DECLARE(app, CONFIG_CHIP_APP_LOG_LEVEL);
 
+using namespace chip;
+using namespace ::chip::app::Clusters;
+
 namespace {
 k_timer sTemperatureMeasurementUpdateTimer;
 constexpr uint16_t kTemperatureMeasurementUpdateTimerPeriodMs = 5000; // 5s timer period