macOS: zero VM is broken due to no member named 'is_cpu_emulated' after JDK-8261966

* For target hotspot_variant-zero_libjvm_objs_os.o:
/Users/fool/df/jdk/src/hotspot/share/runtime/os.cpp:1037:20: error: no member named 'is_cpu_emulated' in 'VM_Version'
   if (VM_Version::is_cpu_emulated()) {
       ~~~~~~~~~~~~^
1 error generated.
* For target hotspot_variant-zero_libjvm_objs_os_bsd.o:
/Users/fool/df/jdk/src/hotspot/os/bsd/os_bsd.cpp:1408:19: error: no member named 'is_cpu_emulated' in 'VM_Version'
  if (VM_Version::is_cpu_emulated()) {
      ~~~~~~~~~~~~^
1 error generated.

* All command lines available in /Users/fool/df/jdk/build/macosx-x86_64-zero-fastdebug/make-support/failure-logs.