Add visibility rule for migration.

Add paths to visibility needed for tests.
Soong allows specifying paths w/o validation.  Once the
migration is complete, we can remove the old path in
visibility rules.

BUG: 137323948
Test: TH
Merged-In: I6a19de131e50c0491e2c29e8277666d201922564
Change-Id: I19c6149021ab589b52be743cd1998dd6c3deaa0a
Exempt-From-Owner-Approval: Cleanup CL
1 file changed