[PATCH] YT-6108: Use code for proper libunwind
previous patch version is https://a.yandex-team.ru/arcadia/devtools/yamaker/projects/llvm/llvm/patches/r2691619-Use-code-for-proper-libunwind.patch?rev=r9248774

--- a/include/llvm/Config/config-linux.h
+++ b/include/llvm/Config/config-linux.h
@@ -76,7 +76,7 @@
 #define HAVE_DEREGISTER_FRAME 1
 
 /* Define if __unw_add_dynamic_fde() is available on this platform. */
+#define HAVE_UNW_ADD_DYNAMIC_FDE 1
-/* #undef HAVE_UNW_ADD_DYNAMIC_FDE */
 
 /* Define to 1 if you have the <errno.h> header file. */
 #define HAVE_ERRNO_H 1