.mailmap: add Heinrich Schuchardt

Add a mailmap entry for me.

Signed-off-by: Heinrich Schuchardt <heinrich.schuchardt@canonical.com>
diff --git a/.mailmap b/.mailmap
index 93533d9..8e69f20 100644
--- a/.mailmap
+++ b/.mailmap
@@ -24,6 +24,7 @@
 Boris Brezillon <bbrezillon@kernel.org> <boris.brezillon@free-electrons.com>
 Dirk Behme <dirk.behme@googlemail.com>
 Fabio Estevam <fabio.estevam@nxp.com>
+Heinrich Schuchardt <xypron.glpk@gmx.de> <heinrich.schuchardt@canonical.com>
 Jagan Teki <402jagan@gmail.com>
 Jagan Teki <jaganna@gmail.com>
 Jagan Teki <jaganna@xilinx.com>