Fail to cross compiling jdk12 for mips64el-linux-gnu target

[Leslie Zhai]

Hi David,

Thanks for your kind response!

You point out the root cause: executing a tool on the build platform 
(X86 host) using the newly compiled classes for the target platform 
(MIPS target) especially when the flags' macro is different.

I will use workaround 1 before fix the root cause.

Regards,

Leslie Zhai