Force second measure pass when there is a configuration change

It's possible for a call to updateConfiguration() to happen in the middle
of performTraversals(), after the measure phase has happened, but before
the layout phase. During the configuration call, it's possible for views to
have requestLayout() called on them. This can result in the request flag
not getting cleared, because views that have had layout requested, but which
have not yet been measured, may not be told to layout.

The correct flow should be that any code path causing requestLayout() (which
could be anything that calls out to user/app code) should happen before the
measure phase (or cause a second measure to occur). For now, causing the second
measure to occur is a low-risk simple change that fixes the immediate problem.

Issue #28152259  Calling requestLayout from inside View.onConfigurationChanged can cause problems

Change-Id: I3b532eeacc3784d8d21193d01ddd7fa15ac0684e