Fixed error in invalidation/LayoutTransition logic

A recent fix for invalidation noop'd calls to invalidate() on
GONE/INVISIBLE views. This logic also noop'd views which might
be GONE, but which are in the process of fading in/out via
LayoutTransition animations. These views should invalidate as
usual.

Change-Id: Ie90a340f70290391a3aa4e68df535c6aabf4e5eb