添加js凭据管理接口文档

Signed-off-by: Nwuqi0105 <wuqi85@huawei.com>

zh-cn/application-dev/reference/apis/js-apis-device-manager.md

@@ -874,9 +874,9 @@ setUserOperation(operateAction: number, params: string): void;
   }
   ```
 
-### requestCredential<sup>10+</sup>
+### requestCredentialRegisterInfo<sup>10+</sup>
 
-requestCredential(requestInfo: string, callback: AsyncCallback<{registerInfo: string}>): void;
+requestCredentialRegisterInfo(requestInfo: string, callback: AsyncCallback<{registerInfo: string}>): void;
 
 获取凭据的注册信息。