udev: allow other rules to skip libinput-model-quirks
This patch allows prior udev rules to set the LIBINPUT_MODEL_QUIRKS_SKIP environment variable to 1 in order to skip libinput-model-quirks. This is useful to prevent certain input devices with capabilities/abs from having their kernel fuzz set to zero (i.e. a gamepad).
Signed-off-by: Daniel J. Ogorchock firstname.lastname@example.org