rust: Skip global 'fuzzer' sanitizer static bins

The 'fuzzer' sanitizer enables 'hwasan', which is not supported for Rust
static binaries. Make sure we skip applying this sanitizer to those
binaries.

Bug: 204776996
Test: SANITIZE_TARGET=fuzzer m <static_rust_executable>
Change-Id: I619cfab32b46c0811590973344eb5cdbe3f1a119