ARM: pxa: zeus: Constify the software node

When device properties are supplied to the devices, in
reality a software fwnode that holds those properties is
created which is then assigned to the device. If the device
properties are constant the software node can also be
constant.
Signed-off-by: Heikki Krogerus <heikki.krogerus@linux.intel.com>
Cc: Daniel Mack <daniel@zonque.org>
Cc: Haojian Zhuang <haojian.zhuang@gmail.com>
Cc: Robert Jarzmik <robert.jarzmik@free.fr>
Link: https://lore.kernel.org/r/20210303152814.35070-4-heikki.krogerus@linux.intel.comSigned-off-by: Mark Brown <broonie@kernel.org>

arch/arm/mach-pxa/zeus.c

@@ -433,10 +433,14 @@ static const struct property_entry mcp251x_properties[] = {
 	{}
 };
 
+static const struct software_node mcp251x_node = {
+	.properties = mcp251x_properties,
+};
+
 static struct spi_board_info zeus_spi_board_info[] = {
 	[0] = {
 		.modalias	= "mcp2515",
-		.properties	= mcp251x_properties,
+		.swnode		= &mcp251x_node,
 		.irq		= PXA_GPIO_TO_IRQ(ZEUS_CAN_GPIO),
 		.max_speed_hz	= 1*1000*1000,
 		.bus_num	= 3,