When opening the dex files we sometime need to check for the real location
of the file (even if it was open via an fd).

Denial example:

avc: denied { getattr } for comm="profman" path="/data/app" dev="sda13"
ino=1048577 scontext=u:r:profman:s0 tcontext=u:object_r:apk_data_file:s0
tclass=dir permissive=0

Test: verify we get no denials when taking a profile snapshot.
Bug: 77922323
Change-Id: Ifa5570656c644819d14f46af74e4c15e903a8a54