platform/x86: silead_dmi: Constify properties arrays

Now that device_add_properties takes a const property_entry * rather
then a non-const one we can constify the properties arrays.
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Darren Hart (VMware) <dvhart@infradead.org>

drivers/platform/x86/silead_dmi.c

@@ -22,10 +22,10 @@
 
 struct silead_ts_dmi_data {
 	const char *acpi_name;
-	struct property_entry *properties;
+	const struct property_entry *properties;
 };
 
-static struct property_entry cube_iwork8_air_props[] = {
+static const struct property_entry cube_iwork8_air_props[] = {
 	PROPERTY_ENTRY_U32("touchscreen-size-x", 1660),
 	PROPERTY_ENTRY_U32("touchscreen-size-y", 900),
 	PROPERTY_ENTRY_BOOL("touchscreen-swapped-x-y"),
@@ -39,7 +39,7 @@ static const struct silead_ts_dmi_data cube_iwork8_air_data = {
 	.properties	= cube_iwork8_air_props,
 };
 
-static struct property_entry jumper_ezpad_mini3_props[] = {
+static const struct property_entry jumper_ezpad_mini3_props[] = {
 	PROPERTY_ENTRY_U32("touchscreen-size-x", 1700),
 	PROPERTY_ENTRY_U32("touchscreen-size-y", 1150),
 	PROPERTY_ENTRY_BOOL("touchscreen-swapped-x-y"),