RFR (trivial): 8247388: Minimal build broken after JDK-8240245 (undefined reference to `MetaspaceShared::_use_optimized_module_handling')

[Ao Qi]

Hi all,

Could you please review this patch?

JBS: https://bugs.openjdk.java.net/browse/JDK-8247388
webrev: http://cr.openjdk.java.net/~aoqi/8247388/webrev.00/

Thanks,
Ao Qi