REGRESSION (276847@main): [ iOS Debug ] 3X fast/viewport/ios/viewport…

…-fit tests are consistent failures

https://bugs.webkit.org/show_bug.cgi?id=274175
rdar://128078422

Unreviewed test gardening.

Adding test expectation.

* LayoutTests/platform/ios/TestExpectations:

Canonical link: https://commits.webkit.org/278773@main

LayoutTests/platform/ios/TestExpectations

@@ -7301,3 +7301,8 @@ webkit.org/b/273848 [ Release ] imported/w3c/web-platform-tests/html/semantics/e
 webkit.org/b/273905 svg/filters/filter-on-root-tile-boundary.html [ Pass ImageOnlyFailure ]
 
 webkit.org/b/273984 http/tests/site-isolation/window-open-with-name-cross-site.html [ Timeout ]
+
+# webkit.org/b/274175 REGRESSION (276847@main): [ iOS Debug ] 3X fast/viewport/ios/viewport-fit tests are consistent failures 
+fast/viewport/ios/viewport-fit-auto.html [ Failure ]
+fast/viewport/ios/viewport-fit-contain.html [ Failure ]
+fast/viewport/ios/viewport-fit-cover.html [ Failure ]