dt-bindings: hwmon: (mr75203) change "resets" property to be optional

Change "resets" property to be optional instead of required, for SOCs
that don't support a reset controller.

Signed-off-by: Eliav Farber <farbere@amazon.com>
Acked-by: Rob Herring <robh@kernel.org>
Link: https://lore.kernel.org/r/20220908152449.35457-9-farbere@amazon.com


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