Add mocks for LockPatternUtils.isSecure() method in setup

This change adds mocking for LockPatternUtils.isSecure method in the
tests where SecurityFeatureProvider is referred in setup as per the
comment in b/323649600#comment7
The tests are passing locally even without this.

Bug: 333504640
Test: atest com.android.settings.privatespace
Change-Id: I7d9c3a8356dbf25cf09530ffb53712b3ab887160

tests/unit/src/com/android/settings/privatespace/UseOneLockControllerTest.java

@@ -68,6 +68,7 @@ public class UseOneLockControllerTest {
         final FakeFeatureFactory featureFactory = FakeFeatureFactory.setupForTest();
         when(featureFactory.securityFeatureProvider.getLockPatternUtils(mContext))
                 .thenReturn(mLockPatternUtils);
+        doReturn(true).when(mLockPatternUtils).isSecure(anyInt());
         mUseOneLockController = new UseOneLockController(mContext, preferenceKey);
 
     }