[llvm] [LLVM] Update BPF maintainer (PR #120429)

[via llvm-commits]

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@@ -188,8 +188,8 @@ Ben Shi \
 
 #### BPF backend
 
-Alexei Starovoitov \
-alexei.starovoitov at gmail.com (email), [4ast](https://github.com/4ast) (GitHub)
+Yonghong Song \
+yhs at fb.com (email), [yonghong-song](https://github.com/yonghong-song) (GitHub)
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eddyz87 wrote:

Right, can add me.
Full name is Eduard Zingerman eddyz87 at gmail.com.

https://github.com/llvm/llvm-project/pull/120429