Commit 1ddc0d43c20cb1c1125d4d6cefc78624b2a9ccb7 introducing
argo_op hypercall forgot to add a mention of it in the
comment listing supported hypercalls. Fix that.
Signed-off-by: Michal Orzel <michal.orzel@arm.com> Reviewed-by: Christopher Clark <christopher.w.clark@gmail.com> Acked-by: Julien Grall <jgrall@amazon.com>