ARM64: dts: marvell: cn9310: Use appropriate label for spi1 pins

Both the CN9130-CRB and CN9130-DB use the SPI1 interface but had the
pinctrl node labelled as "cp0_spi0_pins". Use the label "cp0_spi1_pins"
and update the node name to "cp0-spi-pins-1" to avoid confusion with the
pinctrl options for SPI0.

Fixes: 4c43a41e ("arm64: dts: cn913x: add device trees for topology B boards")
Fixes: 5c0ee547 ("arm64: dts: add support for Marvell cn9130-crb platform")
Signed-off-by: Chris Packham <chris.packham@alliedtelesis.co.nz>
Reviewed-by: Andrew Lunn <andrew@lunn.ch>
Signed-off-by: Gregory CLEMENT <gregory.clement@bootlin.com>