Use $(BUILD_SYSTEM) as the LOCAL_PATH of auto-generated modules.

So that we don't mess up with the vendor path check by accident.

Bug: 27543283
Change-Id: I6c34caefe3ff4abfdd8349a32c68fcca524cfd8e
(cherry-pick from commit efaf5efd06ce0caf739ce48690f2384b37a791d5)
1 file changed