ARM: dts: spear13xx: Update SPI dma properties

Reorder dmas and dma-names property for spi controller node to make it
compliant with bindings.

Fixes: 6e8887f6

 ("ARM: SPEAr13xx: Pass generic DW DMAC platform data from DT")
Signed-off-by: Kuldeep Singh <singh.kuldeep87k@gmail.com>
Acked-by: Viresh Kumar <viresh.kumar@linaro.org>
Link: https://lore.kernel.org/r/20220326042313.97862-2-singh.kuldeep87k@gmail.com

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Signed-off-by: Arnd Bergmann <arnd@arndb.de>