e_focus_policy_history: Correct order of the focus history when appending

e_focus_policy_history: Correct order of the focus history when appending

In the previous patch, we fixed an issue where the order of focus history was incorrect.

The original purpose of the patch was to append a new client after a client with a higher layer after the focused client.
However, there was a problem that the wrong condition of the previous patch
caused the new client to be placed at the beginning of the focus history.
This is a patch that fixes this problem.

Change-Id: Id5730028308004e482c751200e53bc33368d8696