amdgpu: add sync_file import and export functions

v2: update amdgpu-symbol-check

Reviewed-by: Chunming Zhou <david1.zhou@amd.com>
diff --git a/amdgpu/amdgpu-symbol-check b/amdgpu/amdgpu-symbol-check
index c5b85b5..bc9ed3f 100755
--- a/amdgpu/amdgpu-symbol-check
+++ b/amdgpu/amdgpu-symbol-check
@@ -40,6 +40,8 @@
 amdgpu_cs_signal_semaphore
 amdgpu_cs_submit
 amdgpu_cs_submit_raw
+amdgpu_cs_syncobj_export_sync_file
+amdgpu_cs_syncobj_import_sync_file
 amdgpu_cs_wait_fences
 amdgpu_cs_wait_semaphore
 amdgpu_device_deinitialize