hw/arm/armsse: Pass correct child size to sysbus_init_child_obj()

armsse_init() initializes s->armv7m[i] for all i.  It passes the size
of the entire array instead of the array element to
sysbus_init_child_obj().  Harmless, but fix it anyway.

Signed-off-by: Markus Armbruster <armbru@redhat.com>
Reviewed-by: Philippe Mathieu-Daudé <philmd@redhat.com>
Reviewed-by: Paolo Bonzini <pbonzini@redhat.com>
Message-Id: <20200610053247.1583243-43-armbru@redhat.com>

hw/arm/armsse.c

@@ -257,7 +257,8 @@ static void armsse_init(Object *obj)
 
         name = g_strdup_printf("armv7m%d", i);
         sysbus_init_child_obj(OBJECT(&s->cluster[i]), name,
-                              &s->armv7m[i], sizeof(s->armv7m), TYPE_ARMV7M);
+                              &s->armv7m[i], sizeof(s->armv7m[i]),
+                              TYPE_ARMV7M);
         qdev_prop_set_string(DEVICE(&s->armv7m[i]), "cpu-type",
                              ARM_CPU_TYPE_NAME("cortex-m33"));
         g_free(name);