hw/arm/xlnx-zynqmp: Realize cluster after putting RPUs in it

Currently the cluster implementation doesn't have any constraints
on the ordering of realizing the TYPE_CPU_CLUSTER and populating it
with child objects. We want to impose a constraint that realize
must happen only after all the child objects are added, so move
the realize of rpu_cluster. (The apu_cluster is already
realized after child population.)
Signed-off-by: NPeter Maydell <peter.maydell@linaro.org>
Reviewed-by: NRichard Henderson <richard.henderson@linaro.org>
Reviewed-by: NLuc Michel <luc.michel@greensocs.com>
Reviewed-by: NAlistair Francis <alistair.francis@wdc.com>
Reviewed-by: NEdgar E. Iglesias <edgar.iglesias@xilinx.com>
Message-id: 20190121152218.9592-2-peter.maydell@linaro.org

hw/arm/xlnx-zynqmp.c

@@ -188,8 +188,6 @@ static void xlnx_zynqmp_create_rpu(XlnxZynqMPState *s, const char *boot_cpu,
                             &error_abort, NULL);
     qdev_prop_set_uint32(DEVICE(&s->rpu_cluster), "cluster-id", 1);
 
-    qdev_init_nofail(DEVICE(&s->rpu_cluster));
-
     for (i = 0; i < num_rpus; i++) {
         char *name;
 
@@ -217,6 +215,8 @@ static void xlnx_zynqmp_create_rpu(XlnxZynqMPState *s, const char *boot_cpu,
             return;
         }
     }
+
+    qdev_init_nofail(DEVICE(&s->rpu_cluster));
 }
 
 static void xlnx_zynqmp_init(Object *obj)