"VirtualizedLists should never be nested inside plain ScrollViews with the same orientation - use another VirtualizedList-backed container instead." while tap item picker

## I have gone through these following points

- [X] Check latest documentation: https://docs.nativebase.io/
- [X] Check for existing open/closed issues for a possible duplicate before creating a new issue: https://github.com/GeekyAnts/NativeBase/issues
- [X] Use the latest NativeBase release: https://github.com/GeekyAnts/NativeBase/releases
- [X] Check examples from NativeBase KitchenSink https://github.com/GeekyAnts/NativeBase-KitchenSink
- [X] For discussion purpose make use of NativeBase Slack: http://slack.nativebase.io/
- [X] For queries related to theme, check [Theme Variables](https://docs.nativebase.io/docs/ThemeVariables.html) from Docs and live NativeBase Theme Editor http://nativebase.io/customizer/

## Issue Description

#### node, npm, react-native, react and native-base version, expo version if used, xcode version

#### Expected behaviour
The Item picker should view without warnings.
#### Actual behaviour
When Item Picker is shown, the 'VirtualizedLists should never be nested inside plain ScrollViews with the same orientation - use another VirtualizedList-backed container instead.' warning shown.

#### Steps to reproduce
```

}
style={{ width: undefined }}
placeholder="All"
Header="Transaction Type"
iosHeader="Transaction Type"
placeholderStyle={{ color: "#bfc6ea" }}
placeholderIconColor="#007aff"
selectedValue={this.state.selected2}
onValueChange={this.onValueChange2.bind(this)}
>





```
Video Link: https://user-images.githubusercontent.com/50147719/106872277-14bbff00-670e-11eb-9497-4407ca5ac2cb.mov

#### Is the bug present in both iOS and Android or in any one of them?
The bugs occur in iOS and Android. I have tested in iOS 14.4 and Android 11.0
#### Any other additional info which would help us debug the issue quicker.

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