[clang-tools] Symlink lib -> lib64 in prebuilts/clang-tools

Bug: http://b/241011085

Create symlink lib -> lib64 as toolchain libraries have a RUNPATH pointing
to $ORIGIN/../lib instead of lib64

Test: presubmit with new clang-tools prebuilts
Change-Id: I90973fc756b9489a16a0837473b86e728f50d8e0

vndk/tools/header-checker/android/update_clang-tools.sh

@@ -60,6 +60,10 @@ update_prebuilts () {
   rm .fetch* || true
 
   find . | xargs touch
+
+  # create symlink lib -> lib64 as toolchain libraries have a RUNPATH pointing
+  # to $ORIGIN/../lib instead of lib64
+  ln -s lib64 lib
 }