Update stuff related to cache dirs for debmirror

* Fix state names to allow to have different cache dirs for different repos;
* Extend cache logic to not rely on cache and re-sync even after cache init;

Change-Id: I70d8b2c062a36c3bbaf04f76ee8e3d7630ff521b
Related-Prod: PROD-32735
(cherry picked from commit 778464265ae2d98dd20e8c4f6c9c2ce8719802ec)
2 files changed