Include cache files from sdk data when cleaning using freeCache

SDK data should be counted towards the app that uses them. As such, even
though sdk data is owned by sdk sandbox uid, we convert it back to the
app uid so that sdk cache eats away from app's quota.

Bug: 230874001
Test: atest SdkSandboxStorageHostTest
Ignore-AOSP-First: Test is missing in AOSP. Will cherry-pick to AOSP and
                   TM dev after merging on master.
Change-Id: Iea2c6e7d265cd097be34ee2e5299922c5269741f
Merged-In: Iea2c6e7d265cd097be34ee2e5299922c5269741f
(cherry picked from commit 0a66b920)