Dedup registration for cc default test config

The cc.GatherRequiredDepsForTest() method returns some default module
definitions that are required when using cc module types like
cc_library. Previously, the registration of the module types and
mutators needed to process those default definitions was duplicated
in the test config initialization.

This change removes that duplicated code and replaces it with calls
to cc.RegisterRequiredBuildComponentsForTest(ctx) which registers all
the required build components.

Test: m checkbuild
Bug: 146540677
Change-Id: I80b6913c5691ff164ce9d308b9e1da24940f2d42