extcon: arizona: Correct clean up if arizona_identify_headphone fails

In the error path of arizona_identify_headphone, neither the clamp nor
the PM runtime are cleaned up. Add calls to clean up both of these.

Signed-off-by: Charles Keepax <ckeepax@opensource.cirrus.com>
Signed-off-by: Chanwoo Choi <cw00.choi@samsung.com>