mfd: twl6040: Fix typo for power on failure

Fix old copy paste bug:
automatic power-down failed -> automatic power-up failed
Signed-off-by: NPeter Ujfalusi <peter.ujfalusi@ti.com>
Signed-off-by: NSamuel Ortiz <sameo@linux.intel.com>

drivers/mfd/twl6040-core.c

@@ -258,7 +258,7 @@ int twl6040_power(struct twl6040 *twl6040, int on)
 			ret = twl6040_power_up_completion(twl6040, naudint);
 			if (ret) {
 				dev_err(twl6040->dev,
-					"automatic power-down failed\n");
+					"automatic power-up failed\n");
 				twl6040->power_count = 0;
 				goto out;
 			}