MG: Update condition.

[olivegamestudio]

articles/tutorials/advanced/MobileDeployment/02_crossplatform/index.md
For Android:

<ItemGroup Condition="'$(TargetFramework)'=='net8.0-android'">

(https://github.com/MonoGame/docs.monogame.github.io/pull/169#discussion_r2311992594)
These should be using
Condition="$([MSBuild]::GetTargetPlatformIdentifier('$(TargetFramework)')) == 'android'"
This means the code will not need to change when the TargetFramework changes