Update NDK to r22

[koral--]

Pull Request Checklist

Check/accept these:

• The tool I added is stable, and does not require frequent updates. Preinstalled tools on the LTS stacks
  are not updated, so if the tool requires frequent updates you should handle the installation on-demand (see: Install Any Additional Tool - DevCenter for more information)
• I've updated the version in the Dockerfile
• I've updated the CHANGELOG.md
• I've provided a link or explanation below which describes the changes in the tool itself
• I added a version report line to system_report.sh for the new tool(s) I added

https://developer.android.com/ndk/downloads/revision_history

[peterheja-bitrise]

Hello here as well @koral-- :),

Firstly, thank you for this PR, too!
And as I have stated in the other PR, sadly, this change will most probably be not released this year :(

[peterheja-bitrise]

LGTM

[peterheja-bitrise]

Hello here as well @koral-- :),

Firstly, thank you for this PR, too!
And as I have stated in the other PR, sadly, this change will most probably be not released this year :(

Hello @koral--,

This branch is out of date and is your personal fork, so we cannot rebase it.
Could you please rebase this? :)

Thank you and happy new year!