Properties are initialized on the correct devices only but on resume we'd just
blindly apply the config from our device. Depending on the resume order, this
would mean we'd apply a previously set config with a default config.

Example:
* pointer device with keyboard subdevice
* pointer device exports natural scrolling, keyboard device does not and
  remains at default (off)
* client enables natural scrolling on the pointer device
* VT switch away, VT switch back
* pointer device gets enabled first, enables natural scrolling on the
  libinput device
* keyboard device gets enabled second, resets to the default value

Reported-by: Yuxuan Shui <yshuiv7@gmail.com>
Signed-off-by: Peter Hutterer <peter.hutterer@who-t.net>
Tested-by: Yuxuan Shui <yshuiv7@gmail.com>