提交：修改插件iOS配置；

ios/aliyun_face_plugin.podspec

@@ -20,7 +20,11 @@ A new Flutter plugin project.
   # s.swift_version = '4.0'
 
   # Flutter.framework does not contain a i386 slice.
-  s.pod_target_xcconfig = { 'DEFINES_MODULE' => 'YES', 'EXCLUDED_ARCHS[sdk=iphonesimulator*]' => 'i386' }
+  s.pod_target_xcconfig = {
+        'DEFINES_MODULE' => 'YES',
+        'EXCLUDED_ARCHS[sdk=iphonesimulator*]' => 'i386',
+        'OTHER_LDFLAGS' => '-ObjC',
+        }
 
   # 实人认证SDK framework库
   s.vendored_frameworks = 'Products/*.framework'