contrib/gitdm: Add Baidu to the domain map

There is a number of contributors from this domain,
add its own entry to the gitdm domain map.

Signed-off-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Signed-off-by: Alex Bennée <alex.bennee@linaro.org>
Reviewed-by: Chai Wen <chaiwen@baidu.com>
Message-Id: <20201006160653.2391972-4-f4bug@amsat.org>
Message-Id: <20201007160038.26953-10-alex.bennee@linaro.org>

contrib/gitdm/domain-map

@@ -5,6 +5,7 @@
 #
 
 amd.com         AMD
+baidu.com       Baidu
 cmss.chinamobile.com China Mobile
 citrix.com      Citrix
 greensocs.com   GreenSocs