IIO: hid-sensor-prox: Use generic usage

IIO: hid-sensor-prox: Use generic usage

Use a generic 'hsdev->usage' instead of the HID_USAGE_SENSOR_PROX to
allow this driver to drive the Lenvo custom proximity sensor, which is
registered under a 'custom' usage and not HID_USAGE_SENSOR_PROX.

Add the Lenovo Intelligent Sensing Solution (LISS) human presence sensor
to the platform device ids.

Signed-off-by: Philipp Jungkamp <p.jungkamp@gmx.net>
Reviewed-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
Acked-by: Srinivas Pandruvada <srinivas.pandruvada@linux.intel.com>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>