Create secondary dex profiles relative to the provided dex path

We previously used the realpath to simplify the validation and processing
in installd. However it ended up making things more complicated when
cleaning up the profiles, especially because of /data/user/0 symlinks to
/data/data/.

Instead of using the realpath of the dex file to compute the profile
location, use the file path as given. This makes things consistent with
DexManager registration and allows for easier dex file reconciliation in
the presence of symlinks.

Bug: 64460009
Test: manual

(cherry picked from commit c119c5a8c1d8e3ba6c90300a82d2086273d0d3f3)

Merged-In: I2362f32a679324d4bc1e8a0fe83b5b17ee523e7a
Change-Id: Ic9c38a920c5eef85f26ac33f2b8a37c3694bfbad