mailmap: add entries for Simon Horman

Retire some of my email addresses from Kernel activities.

Signed-off-by: Simon Horman <horms@kernel.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
diff --git a/.mailmap b/.mailmap
index 5dd3181..e506625 100644
--- a/.mailmap
+++ b/.mailmap
@@ -538,6 +538,8 @@
 Sibi Sankar <quic_sibis@quicinc.com> <sibis@codeaurora.org>
 Sid Manning <quic_sidneym@quicinc.com> <sidneym@codeaurora.org>
 Simon Arlott <simon@octiron.net> <simon@fire.lp0.eu>
+Simon Horman <horms@kernel.org> <simon.horman@corigine.com>
+Simon Horman <horms@kernel.org> <simon.horman@netronome.com>
 Simon Kelley <simon@thekelleys.org.uk>
 Sricharan Ramabadhran <quic_srichara@quicinc.com> <sricharan@codeaurora.org>
 Srinivas Ramana <quic_sramana@quicinc.com> <sramana@codeaurora.org>