Fixes a few things with the robolectric autoconfig

There are a few extra flags and a few changes to flags that have
happened over the course of getting Robolectric to run under Tradefed
that need adding to the autogenerated config.

Bug: b/157635117
Test: manual
Change-Id: Ifdf90bb512a6e92ed39e671aeff65e0ddf2d0c4f