otapreopt: Collect and print size of artifacts

Collect and print the size of artifacts when moving after a reboot.
This helps in diagnosing issues after the fact.

Bug: 30832951
Change-Id: Iee410adf59dcbb74fa4b49edb27d028025cd8bf9
(cherry picked from commit e7d555267725ca050ddd5e891267a61a55c9e16a)
1 file changed