[Fuzzer] Build the shared memory hooks for Fuchsia

This is needed otherwise we'll get undefined references when trying
to use the libFuzzer built for Fuchsia.

Differential Revision: https://reviews.llvm.org/D44590

git-svn-id: https://llvm.org/svn/llvm-project/compiler-rt/trunk@327759 91177308-0d34-0410-b5e6-96231b3b80d8
1 file changed