Mark the documentation block as kernel doc and drop the documentation of
the non-existing parameter "@msg".
Signed-off-by: Thomas Weißschuh <linux@weissschuh.net>
Link: https://lore.kernel.org/r/20240524-cros_ec-cmd_versions-v1-1-8a148647d051@weissschuh.netSigned-off-by: Tzung-Bi Shih <tzungbi@kernel.org>