Plumb through display orientation separate from transform

This is exclusively used for getRaw compatibility. The input
transform can include window rotation and also, apparently,
nested view rotations as it the events get mutated by ui-toolkit.

Bug: 187686656
Test: cd frameworks/native/services/inputflinger && atest
Change-Id: I2fd7a2b2acbe422d962d0646d41c60eb48160620