react_native_config available to all Android versions (#23470)

Summary:
Move react_native_config.xml so that it's available to all Android versions, and fixes #23445. It's my bad, I should've tested previous change on multiple versions of Android.

[Android] [Changed] - Fix network security
Pull Request resolved: #23470

Differential Revision: D14099612

Pulled By: cpojer

fbshipit-source-id: 15b5e5f575de8033bbfd524d9ad2aa0e22daa813

Author: dulmandakh