Support dream starting in landscape on mobile

This change enables dream to start in the phone's current orientation
regardless of auto-rotation setting.
In NotificationShadeWindow, update layout orientation to SENSOR when
keyguard starts transitioning to dream or finishes on dream,
preventing an intermediate rotation to portrait during the transition.

Apply the same update to the glanceable hub, setting its layout
orientation to SENSOR as well.

Fixes: b/394842694
Fixes: b/402193097
Test: atest NotificationShadeWindowControllerImplTest
Test: atest NotificationShadeWindowModelTest
Flag: android.service.dreams.dreams_v2
Change-Id: I2d5253250ce91336d0c874d34d8c887bda6205e9