Playing dismiss haptics even when a dismiss occurs from a brief fling.

Sometimes, a fling to dismiss does not touch the screen long-enough so
that the magnentic notification row manager enters the PULLING state.
This causes haptics to not play appropriately. If a fling occurs when
the targets are being set, we should also play the dismiss haptics.

Test: manual. Verified haptics play when dismissing while still finding
  the magnetic targets.
Flag: com.android.systemui.magnetic_notification_swipes
Bug: 417790774
Change-Id: Ia6a901a16e56317e9d600c7b433e59aa9e4445de