hwmon: (g762) add a check of devm_add_action in g762_of_clock_enable

devm_add_action may fails, check it and do the cleanup.

Signed-off-by: Kang Chen <void0red@gmail.com>
Link: https://lore.kernel.org/r/20230227030913.893004-1-void0red@gmail.com


Signed-off-by: Guenter Roeck <linux@roeck-us.net>