soc: samsung: exynos-chipid: rename method

soc: samsung: exynos-chipid: rename method

s/product_id_to_soc_id/exynos_product_id_to_name.
Prepend exynos_ to avoid name space pollution. The method translates the
product id to a name, rename the method to make that clear. While
touching the code where it is called, add a blank line for readability
purposes.

Signed-off-by: Tudor Ambarus <tudor.ambarus@linaro.org>
Reviewed-by: André Draszik <andre.draszik@linaro.org>
Link: https://patch.msgid.link/20251222-gs101-chipid-v4-2-aa8e20ce7bb3@linaro.org
Signed-off-by: Krzysztof Kozlowski <krzk@kernel.org>