Don't track modules that are only available to APEXes.

Modules that are not available for platform are developed with
updatability in mind, and do not require manual approvals.

Bug: 181223240
Test: checkbuild
Change-Id: I10b91053b3ef5a9ff5400d9d7a68fae3144a671c
Merged-In: I10b91053b3ef5a9ff5400d9d7a68fae3144a671c
(cherry picked from commit 533b98cd)