anv: Fix the target_bo assertion in anv_reloc_list_add

Fixes: b75a92e2010e "anv: assert that the target bo is valid..."
Closes: https://gitlab.freedesktop.org/mesa/mesa/-/issues/3528
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/6759>
diff --git a/src/intel/vulkan/anv_batch_chain.c b/src/intel/vulkan/anv_batch_chain.c
index e5d0e14..1258af7 100644
--- a/src/intel/vulkan/anv_batch_chain.c
+++ b/src/intel/vulkan/anv_batch_chain.c
@@ -188,6 +188,9 @@
    if (address_u64_out)
       *address_u64_out = target_bo_offset + delta;
 
+   assert(unwrapped_target_bo->gem_handle > 0);
+   assert(unwrapped_target_bo->refcount > 0);
+
    if (unwrapped_target_bo->flags & EXEC_OBJECT_PINNED) {
       assert(!target_bo->is_wrapper);
       uint32_t idx = unwrapped_target_bo->gem_handle;
@@ -200,8 +203,6 @@
    if (result != VK_SUCCESS)
       return result;
 
-   assert(target_bo->gem_handle > 0 && target_bo->refcount > 0);
-
    /* XXX: Can we use I915_EXEC_HANDLE_LUT? */
    index = list->num_relocs++;
    list->reloc_bos[index] = target_bo;