ARM: dts: socfpga: Move sdmmc-ecc node to Arria 10 dts

The ecc manager is a part of the Arria 10 SoC, move it to the correct
dts.

Signed-off-by: Paweł Anikiel <pan@semihalf.com>
Reviewed-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
Signed-off-by: Dinh Nguyen <dinguyen@kernel.org>