Separate compat checks in CameraManager.

Existing config check should only be used for the static treatment.
Camera compat "simulate requested orientation" treatment (aka 'dynamic'
or 'freeform') has its own config in the window manager, which can
disable the feature.

Flag: EXEMPT simple refactoring.
Test: manual
Bug: 425491882
Fixes: 422972544
Change-Id: I18f2afcd468aeb1438e48590d51f5a1bbd0ae136