Add default configs for module service stubs

To be used by individual modules with service components that
define system_server APIs.

Bug: 147768409
Test: m
Change-Id: Iff6a5a840c5dd7731e881d7db379915375d02324
Merged-In: Iff6a5a840c5dd7731e881d7db379915375d02324
(cherry picked from commit 180ec39a)