Only persist launch params on freeform display.

We don't want to launch to fullscreen only because it's been launched on
a fullscreen display before. We should still restore the bounds when it
was on a freeform display last time.

Bug: 135941344
Bug: 135780225
Test: Manual tests.
Change-Id: I9f57651a01513652cc4c38c2d91d4c46db5c5d5d