iOS加入SDK，编译x86_64问题

Undefined symbols for architecture x86_64:

"webrtc::FIRFilterSSE2::FIRFilterSSE2(float const*, unsigned long, unsigned long)", referenced from:

webrtc::FIRFilter::Create(float const*, unsigned long, unsigned long) in libEaseMobClientSDK.a(fir_filter.o)

ld: symbol(s) not found for architecture x86_64

clang: error: linker command failed with exit code 1 (use -v to see invocation)