Reallowlist libneuralnetwork's deps in bp2build

Reverting a revert aosp/2221842 and disabling converted filegroups that are srcs of unconverted gensrcs because of b/247782695.

Bug: 232486397
Test: CI
Change-Id: Ifc5ee7ed6f96ef8081a779e374ad7ac5ecbb947a