Always allow updating config from input during booting

There could be pending CONFIG_SCREEN_LAYOUT change (unrelated to
input), which was sent by the way from the callback. If it is
skipped by no input device changes, the change may send on next
time when a change is detected. But that may run on main thread
rather than input reader thread, which could delay boot time.

Bug: 373067702
Flag: com.android.window.flags.filter_irrelevant_input_device_change
Test: BootTimeTest
Change-Id: I2c569793b926aadd17fd07b688bdeed44ab82539