Avoid NSS under QuickSettingsScene to have NestedScrolling

This change explicitly declares the QuickSettingsScene to not init
scrimNestedScrollConnection to avoid two nested scrolling:
the NSS for single shade and the NSS for QuickSettingsScene to conflict.

Fix: 433941739
Fix: 439802567
Test: manual, single shade, go from Shade -> QS, then QS -> gone, then
expand Shade and start collapsing gesture from a notification
Flag: com.android.systemui.scene_container

Change-Id: Icce717f0484a839ffb4dc4f1204b3be48293224e