Fix that the inconsistent accessibility content pages under Setup Wizard.

Root cause:
Exist the inconsistent conditions.

Next:
1. Move all the condition related to description to the back fragment to determine whether to show the footer preference or not.
2. Add extras relate to animated image.

Bug: 156180932
Test: manual test
Change-Id: I56d4ead6c5121637a2da2e074ef9bff2a8146732