Don't animate NSSL background bounds on display change

This will prevent the NSSL bounds to be animated when the display id changes, as in that case we don't want to see any animation

Bug: 438436158
Test: expand shade on external display while internal had single and external dual -> observe no animation
Flag: com.android.systemui.shade_window_goes_around
Change-Id: I20f858318840dca387748f66271af0024bd78ee6