docs/zh_CN: add Chinese version of embargoed hardware issues

Embargoed hardware issues is a necessary process guide, but leak of
Chinese version, since there is more Chinese hardware vendors in market.
We'd better have a Chinese version of this guide.

This patch translate the guide, add it into toctree. and also add a link
stub for the original doc.
Signed-off-by: Alex Shi <alex.shi@linux.alibaba.com>
Cc: Fengguang Wu <fengguang.wu@intel.com>
Cc: lizefan@huawei.com
Cc: Jonathan Corbet <corbet@lwn.net>
Cc: Harry Wei <harryxiyou@gmail.com>
Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Cc: Sasha Levin <sashal@kernel.org>
Cc: Dave Hansen <dave.hansen@linux.intel.com>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: Ben Hutchings <ben@decadent.org.uk>
Cc: Tom Lendacky <thomas.lendacky@amd.com>
Cc: Tony Luck <tony.luck@intel.com>
Cc: Kees Cook <keescook@chromium.org>
Cc: linux-doc@vger.kernel.org
Cc: linux-kernel@vger.kernel.org
Link: https://lore.kernel.org/r/1576811085-30544-1-git-send-email-alex.shi@linux.alibaba.comSigned-off-by: Jonathan Corbet <corbet@lwn.net>

Documentation/process/embargoed-hardware-issues.rst

+.. _embargoed_hardware_issues:
+
 Embargoed hardware issues
 =========================
 

Documentation/translations/zh_CN/process/index.rst

@@ -43,6 +43,7 @@
    stable-api-nonsense
    stable-kernel-rules
    management-style
+   embargoed-hardware-issues
 
 这些是一些总体技术指南，由于缺乏更好的地方，现在已经放在这里