Add the AccessibilitySearchFeatureProvider mock in testutils/FakeFeatureFactory

* Complete the missing part in ag/14299190

Bug: 184171842
Test: build pass
Change-Id: I020f218b58dca132bdb093163f764e125b8ea816

tests/unit/src/com/android/settings/testutils/FakeFeatureFactory.java

@@ -124,6 +124,7 @@ public class FakeFeatureFactory extends FeatureFactory {
         extraAppInfoFeatureProvider = mock(ExtraAppInfoFeatureProvider.class);
         securitySettingsFeatureProvider = mock(SecuritySettingsFeatureProvider.class);
         gameSettingsFeatureProvider = mock(GameSettingsFeatureProvider.class);
+        mAccessibilitySearchFeatureProvider = mock(AccessibilitySearchFeatureProvider.class);
     }
 
     @Override