Bug fix flag to show different error screen for PS creation

Introduces a new flag to check private space create error to show a
different error screen for use cases where profile creation failed
because PS is not supported on the device containing a link to Help
Center atricle to find out more about the reason for profile creation
failure.

Bug: 340130375
Test: Build
Flag: android.multiuser.show_different_creation_error_for_unsupported_devices
Change-Id: Idf8f1554d0cb6bfd6a954cc0c5e18aae483e06e7