Now that input dump functionalities are at subsystem level, drop the
custom code from the sample, just enable CONFIG_INPUT_EVENT_DUMP.
Signed-off-by: Fabio Baltieri <fabiobaltieri@google.com>
Add a first input sample in the subsys/input directory. This just prints
any input event on the console.
Signed-off-by: Fabio Baltieri <fabiobaltieri@google.com>