C++17: fix name collision.

  external/libcxx/include/algorithm:1584:10: error: called object type 'char [4]' is not a function or function pointer
  { return __s(__f, __l).first; }
           ^~~
  system/libhidl/transport/ServiceManagement.cpp:387:45: note: in instantiation of function template specialization 'std::__1::search<std::__1::basic_string<char>, char [4]>' requested here
              std::vector<std::string> libs = search(path, prefix, ".so");
                                              ^

Bug: http://b/111067277
Test: builds
Change-Id: I0635b12413b94afa203984c95075dc3ff4f11afd
1 file changed