Consider `libdt_fd_forward` as an ART internal library in `art_apex_test.py`.

This library used to be qualified as one of the "internal native
library dependencies" in a comment (e.g. like `libbacktrace`).
However, thus library is part of the `platform/art` Android project,
so it should be considered as one of the "internal libraries for ART"
(e.g. like `libadbconnection`).

Test: n/a (comment-only change)
Change-Id: I0fac039daaef49871cc798459c07b6441e706440
1 file changed