Add codeowners for bundler and wrapper tools (#2845)

Since these tools are placed in clang/ directory, the automation
requests review from clang frontend code owners, this is not correct. Add
proper code owners for these tools.

Author: Fznamznon

.github/CODEOWNERS

@@ -88,3 +88,6 @@ xpti/ @tovinkere @andykaylor
 xptifw/ @tovinkere  @andykaylor
 
 llvm/tools/sycl-post-link/ @kbobrovs @AlexeySachkov
+
+clang/tools/clang-offload-bundler/ @kbobrovs @sndmitriev
+clang/tools/clang-offload-wrapper/ @sndmitriev @kbobrovs