[cc/sanitize] Re-enable new pass manager for fuzzer targets

Bug: http://b/133876586

This was turned off but the upstream change fixing this has been long
part of the Android toolchain.

Test: Output of
  m aidl_parser_fuzzer; readelf aidl_parser_fuzzer | grep -c sancov
hasn't changed.

Change-Id: I1d5f9c94cebad74ee00adc1290bbf425bb5c4cd3