Don't tell make about modules in other namespaces

This was causing build breaks when different devices moved to Android.bp
at different times.

Bug: 150878976
Test: build *_hwasan targets
Change-Id: I68912bb6a5696809c318d1ec816a1bcfbe2df245
Merged-In: I68912bb6a5696809c318d1ec816a1bcfbe2df245
(cherry picked from commit 7b6af23d)