vmstate: fix varrays with uint32_t indexes

VMSTATE_VARRAY_UINT32() is used in hw/ds1225y.c, and we checked
VMS_VARRAY_UINT32 bit of field->flags in vmstate_load_state(),
but we don't check this bit in vmstate_save_state().
Signed-off-by: NAmos Kong <akong@redhat.com>
Acked-by: NJuan Quintela <quintela@redhat.com>
Acked-by: NHervé Poussineau <hpoussin@reactos.org>
Signed-off-by: NBlue Swirl <blauwirbel@gmail.com>

savevm.c

@@ -1486,6 +1486,8 @@ void vmstate_save_state(QEMUFile *f, const VMStateDescription *vmsd,
                 n_elems = field->num;
             } else if (field->flags & VMS_VARRAY_INT32) {
                 n_elems = *(int32_t *)(opaque+field->num_offset);
+            } else if (field->flags & VMS_VARRAY_UINT32) {
+                n_elems = *(uint32_t *)(opaque+field->num_offset);
             } else if (field->flags & VMS_VARRAY_UINT16) {
                 n_elems = *(uint16_t *)(opaque+field->num_offset);
             } else if (field->flags & VMS_VARRAY_UINT8) {