mfd: printk/comment fixes

Correct spelling typo in drivers/mfd

Signed-off-by: Masanari Iida <standby24x7@gmail.com>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
diff --git a/drivers/mfd/tps65911-comparator.c b/drivers/mfd/tps65911-comparator.c
index 5a62e6bf..0b6e361 100644
--- a/drivers/mfd/tps65911-comparator.c
+++ b/drivers/mfd/tps65911-comparator.c
@@ -136,7 +136,7 @@
 
 	ret = comp_threshold_set(tps65910, COMP2, pdata->vmbch2_threshold);
 	if (ret < 0) {
-		dev_err(&pdev->dev, "cannot set COMP2 theshold\n");
+		dev_err(&pdev->dev, "cannot set COMP2 threshold\n");
 		return ret;
 	}