Always update config from decor insets change during booting

This is a bit similar to I7954925775e98171563ccad16b6999c17ece173c

Even if there is no changes to screen size configuration, there might
be other pending changes that can affect display configuration.
This is like a workaround to keep original magic result, i.e. the
memory usage could be less if the first CONFIG_SCREEN_LAYOUT happens
before the first CONFIG_ASSETS_PATHS.

Bug: 369818539
Flag: EXEMPT bugfix
Test: privatedirty_bytes_surfaceflinger after booted
Change-Id: Ibe531a9d9ab06b71a0c1947dbce4fd75670dd420