Change the location of current profiles for secondary dex files

Update the installd code to handle the new location for secondary dex
profiles.

Tighten up the validation code and add tests.

Counter part for frameworks commit
a07ca21f9727325d76d2ddbfa119513f47f0b45f.

Bug: 62336157
Test: adb shell cmd package compile -r bg-dexopt --secondary-dex
com.google.android.googlequicksearchbox
      adb shell cmd package reconcile-secondary-dex-files
com.google.android.googlequicksearchbox

Change-Id: Ib7af091a35fe53e7f6bb5f30a09911188caff88f