contrib/gitdm: map HiSilicon to Huawei

HiSilicon is a wholly owned subsidiary of Huawei so map the domain to
the same company to avoid splitting the contributions.

Reviewed-by: Yicong Yang <yangyicong@hisilicon.com>
Signed-off-by: Alex Bennée <alex.bennee@linaro.org>
Message-Id: <20231106185112.2755262-20-alex.bennee@linaro.org>

contrib/gitdm/domain-map

@@ -22,6 +22,7 @@ fb.com          Facebook
 fujitsu.com     Fujitsu
 google.com      Google
 greensocs.com   GreenSocs
+hisilicon.com   Huawei
 huawei.com      Huawei
 ibm.com         IBM
 igalia.com      Igalia