hw/misc/edu: Convert type_init() -> DEFINE_TYPES()

Prefer DEFINE_TYPES() macro over type_init() to register
QOM types.

Initialize the .interfaces struct field as compound literal
casted to InterfaceInfo type like the rest of our code base.

Signed-off-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Message-Id: <20250424194905.82506-2-philmd@linaro.org>

hw/misc/edu.c

@@ -429,21 +429,18 @@ static void edu_class_init(ObjectClass *class, void *data)
     set_bit(DEVICE_CATEGORY_MISC, dc->categories);
 }
 
-static void pci_edu_register_types(void)
-{
-    static InterfaceInfo interfaces[] = {
-        { INTERFACE_CONVENTIONAL_PCI_DEVICE },
-        { },
-    };
-    static const TypeInfo edu_info = {
+static const TypeInfo edu_types[] = {
+    {
         .name          = TYPE_PCI_EDU_DEVICE,
         .parent        = TYPE_PCI_DEVICE,
         .instance_size = sizeof(EduState),
         .instance_init = edu_instance_init,
         .class_init    = edu_class_init,
-        .interfaces = interfaces,
-    };
+        .interfaces    = (InterfaceInfo[]) {
+            { INTERFACE_CONVENTIONAL_PCI_DEVICE },
+            { },
+        },
+    }
+};
 
-    type_register_static(&edu_info);
-}
-type_init(pci_edu_register_types)
+DEFINE_TYPES(edu_types)