Make native input focus up to date

Previously, mWindowPlacerLocked.performSurfacePlacement() was called
after updateFocusedWindowLocked(), so the input windows would get
updated in relayoutWindow() after updating focus window.

But now, there is no surface placement after updating focus window,
so this makes it update the input windows just within
updateFocusedWindowLocked().

Bug: 112880070
Test: atest CtsWindowManagerDeviceTestCases:LayoutTests
Change-Id: Ib7077b9567f3d5e6b62c2c4f4db51d569c1fce79