Compute config based on original override for inherited letterbox

In shell transition, the relative display rotation between parent
will be used as the transform of surface (see WindowContainer
#updateSurfacePosition). Anyway, the original full config contains
too many unrelated non-undefined config fields, which may not be
needed to be the override.

By updating requested override configuration of transparent activity
directly, it won't mis-request unnecessary override fields. Such
as inconsistent max bounds can also be fixed by the way.

Fix: 276711259
Test: SizeCompatTests#testApplyStrategyToTranslucentActivities \
      RetainsWindowConfigurationProperties
Test: adb shell wm set-letterbox-style \
      --isTranslucentLetterboxingEnabled 1
      adb shell cmd window set-ignore-orientation-request 1
      Launch a fixed orientation opaque activity and then
      a translucent activity in the same task. Rotate display.
Change-Id: Iae4347036f98de345d7d8a367ceb5121974d39f7