power: supply: mt6360: add a check of devm_work_autocancel in mt6360_charger_probe

devm_work_autocancel may fail, add a check and return early.

Fixes: 0402e8eb ("power: supply: mt6360_charger: add MT6360 charger support")
Signed-off-by: Kang Chen <void0red@gmail.com>
Signed-off-by: Sebastian Reichel <sebastian.reichel@collabora.com>