Bazel 8 migration - Patch androidx flag & annotation template

[edwin-grabtaxi]

There are 2 patches:

1. setting androidx flag to compiler to true -> after migration, seems the databinding library that's pulled defaulted to androidx, causing build error on rules_android if we stay referencing android support (this is related to the previous patch in Bazel 8 Migration - Patch databinding prefixes needed by databinding_exec #200)
2. DatabindingInfo is a class needed as the annotation template for databinding -> update its package to reference androidx.