Allow force resize message activity to be resumed

"Activity may not work with split-screen" message is not showing
because the overlay activity is not allowed to resume without
user action.

Bug: 36205249
Test: Launch an activity with target SDK < 25, enable split-screen
Test: go/wm-smoke
Change-Id: Ic796f4449df1307c75ca5445cbffab218f0f8ae3