Global scale must always be updated when size compat scale is changed

When an orientation change request that comes from the app differs
from the orientation for the current activity the UI layout is not
updated. This may lead to an un-intended layout size.

Solve this by updating Global scale when size compat scale is changed.

Test: run test apk
Bug: 286384732
Change-Id: I1b3d93337c7700d58be94f5731abff932ea1895b