spi: fix typo in comment

Spelling mistake (triple letters) in comment.
Detected with the help of Coccinelle.

Signed-off-by: Julia Lawall <[e-mail]>
Link: https://lore.kernel.org/r/[e-mail]
Signed-off-by: Mark Brown <[e-mail]>

include/linux/spi/spi.h

···
 	if (ctlr->max_transfer_size)
 		tr_max = ctlr->max_transfer_size(spi);
 
-	/* transfer size limit must not be greater than messsage size limit */
+	/* transfer size limit must not be greater than message size limit */
 	return min(tr_max, msg_max);
 }