[PATCH] arm64: dts: meson: Fix erroneous SPI bus warnings

Rob Herring [off-list ref] writes:

dtc has new checks for SPI buses. The meson dts files have a node named
spi' which causes false positive warnings. As the node is a pinctrl child
node, change the node name to be 'spi-pins' to fix the warnings.

arch/arm64/boot/dts/amlogic/meson-gxbb-nanopi-k2.dtb: Warning (spi_bus_bridge): /soc/periphs at c8834000/pinctrl at 4b0/spi: incorrect #address-cells for SPI bus

Cc: Carlo Caione <redacted>
Cc: Kevin Hilman <khilman@baylibre.com>
Cc: linux-amlogic at lists.infradead.org
Signed-off-by: Rob Herring <robh@kernel.org>
---
Please apply to the sub-arch tree. The dtc changes haven't landed, but 
will for 4.20.

Applied, will queue for v4.20.

Kevin