The timepulse pin is an output that can be used to generate a pulse at a
(configurable) frequency (i.e. it is not an input).
Fixes: dba529605f ("dt-bindings: gnss: Rewrite common bindings in YAML")
Acked-by: Conor Dooley <conor.dooley@microchip.com>
Signed-off-by: Johan Hovold <johan@kernel.org>