+[GREYAutomationSetup grey_modifyKeyboardSettings] triggering 2 exceptions on 9.3.1 device

The following 2 errors appear in the log on 9.3.1 device, seems to be related to method:
+[GREYAutomationSetup grey_modifyKeyboardSettings]

```
FunctionalTestRig[2353:1633153] CoreData: error: -addPersistentStoreWithType:SQLite configuration:(null) URL:file:///var/mobile/Library/Keyboard/CoreDataUbiquitySupport/mobile~/UserDictionary/local/store/CloudUserDictionary.sqlite options:{
NSReadOnlyPersistentStoreOption = 1;
} ... returned error Error Domain=NSCocoaErrorDomain Code=256 "The file couldn’t be opened." UserInfo={reason=Failed to access file: 1} with userInfo dictionary {
reason = "Failed to access file: 1";
}
FunctionalTestRig[2353:1633153] -[TIUserDictionaryController loadPersistentStoreAtURL:] could not open user dictionary at file:///var/mobile/Library/Keyboard/CoreDataUbiquitySupport/mobile~/UserDictionary/local/store/CloudUserDictionary.sqlite: Error Domain=NSCocoaErrorDomain Code=256 "The file couldn’t be opened." UserInfo={reason=Failed to access file: 1}
```

To anonymize this report I removed the identifier from the folder name in the log, but it is just some random string.