qdev: set properties with device_class_set_props()

The following patch will need to handle properties registration during
class_init time. Let's use a device_class_set_props() setter.

spatch --macro-file scripts/cocci-macro-file.h  --sp-file
./scripts/coccinelle/qdev-set-props.cocci --keep-comments --in-place
--dir .

@@
typedef DeviceClass;
DeviceClass *d;
expression val;
@@
- d->props = val
+ device_class_set_props(d, val)

Signed-off-by: Marc-André Lureau <marcandre.lureau@redhat.com>
Message-Id: <20200110153039.1379601-20-marcandre.lureau@redhat.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
diff --git a/hw/char/stm32f2xx_usart.c b/hw/char/stm32f2xx_usart.c
index 4ec843d..0d661be 100644
--- a/hw/char/stm32f2xx_usart.c
+++ b/hw/char/stm32f2xx_usart.c
@@ -222,7 +222,7 @@
     DeviceClass *dc = DEVICE_CLASS(klass);
 
     dc->reset = stm32f2xx_usart_reset;
-    dc->props = stm32f2xx_usart_properties;
+    device_class_set_props(dc, stm32f2xx_usart_properties);
     dc->realize = stm32f2xx_usart_realize;
 }