Fix CollapsingToolbarLayout pinned views with insets

Caused by Ib34219f1ba60901d973eea96c7453be46d9bf555
which now ignores window insets if we're not set
to fit system windows. Since we've never explicitly
set fit system windows on CTL, we need to make sure
that it happens automatically.

BUG: 30185901

Change-Id: I1c5c4ded96ae1ac58b856dab86e97d93e7c327eb
1 file changed