Disable rotation check to enter overview

If we are on the launcher on a phone we are likely to be in portrait which will fail the switchToOverview action.

Bug: 300065764
Test: atest com.android.wm.shell.flicker.service.splitscreen.flicker.EnterSplitScreenFromOverviewGesturalNavLandscape
Change-Id: I9542409f2c28b1996ad958d8c572e53ca7ea2537