Add clang-format

Refer:https://github.com/openbmc/docs/blob/ac5d544553934f8083c61c5986a1420261bc8a4c/style/cpp/.clang-format

Signed-off-by: George Liu <liuxiwei@inspur.com>
Change-Id: I931503febf4e17af5c328a6496e499992bc4e381
diff --git a/ikvm_video.hpp b/ikvm_video.hpp
index 23c58a7..17477df 100644
--- a/ikvm_video.hpp
+++ b/ikvm_video.hpp
@@ -128,8 +128,7 @@
     struct Buffer
     {
         Buffer() : data(nullptr), queued(false), payload(0), size(0)
-        {
-        }
+        {}
         ~Buffer() = default;
         Buffer(const Buffer&) = default;
         Buffer& operator=(const Buffer&) = default;