soc: samsung: exynos-chipid: use devm action to unregister soc device

soc: samsung: exynos-chipid: use devm action to unregister soc device

Simplify the unwinding of the soc device by using a devm action.
Add the action before the exynos_asv_init() to avoid an explicit call
to soc_device_unregister().

Signed-off-by: Tudor Ambarus <tudor.ambarus@linaro.org>
Reviewed-by: André Draszik <andre.draszik@linaro.org>
Link: https://patch.msgid.link/20251120-gs101-chipid-v3-1-1aeaa8b7fe35@linaro.org
Signed-off-by: Krzysztof Kozlowski <krzk@kernel.org>