ARM: dts: s5pv210: Adjust memory reg entries to match spec

The reg property of memory nodes should have pairs of offset, size;
not all memory banks lumped in as one.

Signed-off-by: Jonathan Bakker <xc-racer2@live.ca>
Link: https://lore.kernel.org/r/CY4PR04MB05677849A13F41BF603906DFCB1C9@CY4PR04MB0567.namprd04.prod.outlook.com


Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>