mailmap: add new email address for Martin Kepplinger

Include my new email address for tracking my contributions.

Signed-off-by: Martin Kepplinger <martin.kepplinger@puri.sm>
Signed-off-by: Jonathan Corbet <corbet@lwn.net>
diff --git a/.mailmap b/.mailmap
index edcac87..70105bb 100644
--- a/.mailmap
+++ b/.mailmap
@@ -151,6 +151,7 @@
 Mark Yao <markyao0591@gmail.com> <mark.yao@rock-chips.com>
 Martin Kepplinger <martink@posteo.de> <martin.kepplinger@theobroma-systems.com>
 Martin Kepplinger <martink@posteo.de> <martin.kepplinger@ginzinger.com>
+Martin Kepplinger <martink@posteo.de> <martin.kepplinger@puri.sm>
 Mathieu Othacehe <m.othacehe@gmail.com>
 Matthew Wilcox <willy@infradead.org> <matthew.r.wilcox@intel.com>
 Matthew Wilcox <willy@infradead.org> <matthew@wil.cx>