Currently, android-non-updatable.stubs modules, which have dependencies
on from-source creating droidstubs modules, are on the ninja critical
path during from-text stub build. This change creates a from-text stub
generating java_api_library equivalence of the modules.

Test: m android-non-updatable.stubs.from-text \
    android-non-updatable.stubs.system.from-text \
    android-non-updatable.stubs.test.from-text \
    android-non-updatable.stubs.module_lib.from-text
Bug: 273403800
Change-Id: If593d3b65a6d62484749cc3085c9333e44431248