mailmap: add entry for Tiezhu Yang

Add an entry to connect all my email addresses.

Signed-off-by: Tiezhu Yang <yangtiezhu@loongson.cn>
Link: https://lore.kernel.org/r/1580721045-4988-1-git-send-email-yangtiezhu@loongson.cn
Signed-off-by: Jonathan Corbet <corbet@lwn.net>
diff --git a/.mailmap b/.mailmap
index 00581c1..d1f9eed 100644
--- a/.mailmap
+++ b/.mailmap
@@ -250,6 +250,7 @@
 Tejun Heo <htejun@gmail.com>
 Thomas Graf <tgraf@suug.ch>
 Thomas Pedersen <twp@codeaurora.org>
+Tiezhu Yang <yangtiezhu@loongson.cn> <kernelpatch@126.com>
 Todor Tomov <todor.too@gmail.com> <todor.tomov@linaro.org>
 Tony Luck <tony.luck@intel.com>
 TripleX Chung <xxx.phy@gmail.com> <zhongyu@18mail.cn>