With b/152655547, all aidl_interface modules are considered as stable
unless it is explicitly with "unstable: true". This change marks the
aidl_interface that are not used across updatable module bounraries
as unstable, so that the build system does not run the API
dumping/checking on them.
Exempt-From-Owner-Approval: cherry-pick from internal
Bug: 152655547
Test: m
Merged-In: I1257c66de6dd42b2d32d47ed74cb2878f79d14fb
(cherry picked from commit 6c9c10c91e)
Change-Id: I1257c66de6dd42b2d32d47ed74cb2878f79d14fb
de93db8570