Move amphora_image_name|url to defaults

Change-Id: I511cbcd518df1b511837a7633f2967b4cb9a5782
Prod-related: PROD-26621 (PROD:26621)
(cherry picked from commit 2ecced2c82f7a451a03e001c8a0cdc8bb2f4b5e0)
3 files changed