Set launch power mode for display change transition

It may reduce 10% latency if the visible activity takes longer time
to redraw for the display configuration change, e.g. relaunch.

Bug: 206487939
Test: setprop persist.debug.shell_transit 1; reboot
      Rotate device and check the log of ACTION_ROTATE_SCREEN.
Change-Id: I393ff88f26ddfc94cb9d2fb1aa95e88cb20a9ee1