dt-bindings: mfd: samsung,s2mps11: Split s2mpg10-pmic into separate file

dt-bindings: mfd: samsung,s2mps11: Split s2mpg10-pmic into separate file

The samsung,s2mpg10-pmic binding is going to acquire various additional
properties. To avoid making the common samsung,s2mps11 binding file too
complicated due to additional nesting, split s2mpg10 out into its own
file.

As a side-effect, the oneOf for the interrupts is not required anymore,
as the required: node is at the top-level now.

Signed-off-by: André Draszik <andre.draszik@linaro.org>
Reviewed-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
Link: https://patch.msgid.link/20260122-s2mpg1x-regulators-v7-4-3b1f9831fffd@linaro.org
Signed-off-by: Lee Jones <lee@kernel.org>