1、增加ios配置；

ios/aliyun_face_plugin.podspec

@@ -23,6 +23,7 @@ A new Flutter plugin project.
   s.pod_target_xcconfig = {
         'DEFINES_MODULE' => 'YES',
         'EXCLUDED_ARCHS[sdk=iphonesimulator*]' => 'i386',
+        'OTHER_LDFLAGS' => '-ObjC',
         }
 
   # 实人认证SDK framework库