ITS: ensure that logs are printed for all captures in zoom tests

Details: currently, after a single instance of an offset check FAIL, all subsequent logs for successful offset checks will be suppressed. Changed behavior to only suppress logs if they were previously logged.

Change-Id: Ie30d8ad407291613077e1c223f1b58d26d24bfab
Flag: TEST_ONLY
Bug: 399167094
Test: ran test_preview_zoom