add eventlog mock for GsmCdmaCallTrackerTest Test

import org.mockito.MockitoAnnotations;

import org.mockito.ArgumentCaptor;

import android.os.Handler;

import android.util.SparseArray;

import static org.junit.Assert.assertNotNull;

import static org.mockito.Mockito.doReturn;

import static org.junit.Assert.assertEquals;

    private SimulatedCommandsVerifier mSimulatedCommandsVerifier;

    @Mock

    private Handler mHandler;

    @Mock

    private TelephonyEventLog mTelephonyEventLog;

    private class GsmCdmaCTHandlerThread extends HandlerThread {

        field.set(null, mSimulatedCommandsVerifier);

        mReady = false;

        field = TelephonyEventLog.class.getDeclaredField("sInstances");

        field.setAccessible(true);

        SparseArray<TelephonyEventLog> mTelephonyEventArr = new SparseArray<TelephonyEventLog>();

        mTelephonyEventArr.put(mPhone.getPhoneId(), mTelephonyEventLog);

        field.set(null,mTelephonyEventArr);

        new GsmCdmaCTHandlerThread(TAG).start();

        waitUntilReady();