mfd: ab8500-debugfs: fix "between" in printk

fix spelling mistake, beetween -> between

Signed-off-by: Colin Ian King <colin.king@canonical.com>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
diff --git a/drivers/mfd/ab8500-debugfs.c b/drivers/mfd/ab8500-debugfs.c
index 69d9fff..0aecd7b 100644
--- a/drivers/mfd/ab8500-debugfs.c
+++ b/drivers/mfd/ab8500-debugfs.c
@@ -2563,7 +2563,7 @@
 
 	if (user_trig_timer & ~0xFF) {
 		dev_err(dev,
-			"debugfs error input: should be beetween 0 to 255\n");
+			"debugfs error input: should be between 0 to 255\n");
 		return -EINVAL;
 	}