Add ChromeOS EC-based hardware monitoring as EC subdevice.
Signed-off-by: Thomas Weißschuh <linux@weissschuh.net>
Link: https://lore.kernel.org/r/20240529-cros_ec-hwmon-v4-3-5cdf0c5db50a@weissschuh.netSigned-off-by: Lee Jones <lee@kernel.org>