Add smalltest annotation to HardwareServicePermissionTest.

import android.os.IHardwareService;

import android.os.RemoteException;

import android.os.ServiceManager;

import android.test.suitebuilder.annotation.SmallTest;

/**

 * Verify that Hardware apis cannot be called without required permissions.

 */

@SmallTest

public class HardwareServicePermissionTest extends TestCase {

    private IHardwareService mHardwareService;