Normalize scheme for URL on Android

[radeno]

Android requires lowercase for URL scheme. This commit d00bdb9 fixed it but on React Native side.
Because it is Android specific, it should be fixed on Android side.

Android has method to normalize url scheme: https://developer.android.com/reference/android/net/Uri.html#normalizeScheme()

Test Plan:

> import android.net.Uri;
> 
> Uri.parse("Http://google.com").normalizeScheme();

Result: http://google.com
> import android.net.Uri;
> 
> Uri.parse("HtTps://google.com").normalizeScheme();

Result: https://google.com

Release Notes:

[ANDROID] [BUGFIX] [Component] - Normalize Android URI scheme

[facebook-github-bot]

Thank you for your pull request and welcome to our community. We require contributors to sign our Contributor License Agreement, and we don't seem to have you on file. In order for us to review and merge your code, please sign up at https://code.facebook.com/cla. If you are contributing on behalf of someone else (eg your employer), the individual CLA may not be sufficient and your employer may need the corporate CLA signed.

If you have received this in error or have any questions, please contact us at cla@fb.com. Thanks!

[pull-bot]

	Warnings
⚠️	📋 Test Plan - This PR appears to be missing a Test Plan.

Generated by 🚫 dangerJS

[dulmandakh]

@facebook-github-bot shipit

[facebook-github-bot]

I cannot do that @dulmandakh, because @radeno does not have an active CLA on file.

[dulmandakh]

@radeno thank you for the PR. Could you please sign CLA so we can land your PR.

[radeno]

@dulmandakh done

[facebook-github-bot]

Thank you for signing our Contributor License Agreement. We can now accept your code for this (and any) Facebook open source project. Thanks!

[dulmandakh]

@facebook-github-bot shipit

[facebook-github-bot]

dulmandakh is landing this pull request. If you are a Facebook employee, you can view this diff on Phabricator.

[react-native-bot]

@radeno merged commit 4b6f02e into facebook:master.