Reset screen timeout upon keyguard touches for nssl migration

Currently NotificationPanelViewController calls to centralsurfaces'
userActivity. We are bypassing NPVC with the nssl migration, so we need
to move this call upwards.

Fixes: 314171242
Test: atest NotificationShadeWindowViewControllerTest.kt
Test: atest NotificationPanelViewControllerTest.java
Flag: ACONFIG com.android.systemui.keyguard_shade_migration_nssl DEVELOPMENT
Change-Id: I43de38594051489d95c2286b824aa22f831946c6