combine crossplatform compilation

zhangmeng

2022-06-09 39c30eb5348b640c361cb50c2f02cf27b8bdf783

 protobuf/aarch64/include/google/protobuf/compiler/objectivec/objectivec_helpers.h

copy from protobuf-aarch/include/google/protobuf/compiler/objectivec/objectivec_helpers.h
copy to protobuf/aarch64/include/google/protobuf/compiler/objectivec/objectivec_helpers.h