comedi: drivers: adl_pci9118.c: Edit file so that checkpatch.pl has 0 typo errors

Fix errors produced by checkpath.pl about typos.

Signed-off-by: Heikki Huttu <heissendo88@gmail.com>
Reviewed-by: Ian Abbott <abbotti@mev.co.uk>
Link: https://lore.kernel.org/r/aBzfbvF6YdaYDDYk@Lappari.v6.elisa-laajakaista.fi


Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>