Unminimizing after toggle screen on/off shows docked app correctly (1/2)

When turning screen off when in minimized mode with resizable launcher,
then turning screen back on and unminimizing, it would have the
incorrect position of the divider from the started split position and
the docked app would have the wrong task bounds compared to its stack
bounds (so the docked app looks clipped). Block toggling minimized state
when screen turns off when being minimized will fix this.

Fixes: 34937502, 35388501
Test: cts/hostsidetests/services/activityandwindowmanager/util/run-test
CtsServicesHostTestCases
android.server.cts.ActivityManagerDockedStackTests
Change-Id: I255a56d6b4041586f9125ee39f6e75a3c61f544f