platform/x86: wmi: move dev_to_wblock() and dev_to_wdev to use container_of_const()

platform/x86: wmi: move dev_to_wblock() and dev_to_wdev to use container_of_const()

The driver core is changing to pass some pointers as const, so move the
dev_to_wdev() and dev_to_wblock() functions to use container_of_const()
to handle this change.

Both of these functions now properly keep the const-ness of the pointer
passed into it, while as before it could be lost.

Cc: Hans de Goede <hdegoede@redhat.com>
Cc: Mark Gross <markgross@kernel.org>
Acked-by: Hans de Goede <hdegoede@redhat.com>
Link: https://lore.kernel.org/r/20230111113018.459199-10-gregkh@linuxfoundation.org
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>