add llvm obfuscator to aosp

[oakieville]

hello im looking for some help with switching the compiler used in aosp source to use obfuscator-llvm. currently i am compiling an external native executable for android with the default compiler i can compile the executable without problems and i am able to use the obfuscator-llvm in android ndk to compile it however im lost as to how to use obfuscator-llvm as the compiler in aosp source.
i am using mm command in aosp to build the executable