Add Alison Wang m68k custodian email/alias

Signed-off-by: Angelo Dureghello <angelo@sysam.it>
diff --git a/doc/git-mailrc b/doc/git-mailrc
index a2f0e3b..4d567d7 100644
--- a/doc/git-mailrc
+++ b/doc/git-mailrc
@@ -14,6 +14,7 @@
 alias abiessmann     Andreas Bießmann <andreas.devel@googlemail.com>
 alias afleming       Andy Fleming <afleming@gmail.com>
 alias ag             Anatolij Gustschin <agust@denx.de>
+alias alisonwang     Alison Wang <alison.wang@freescale.com>
 alias angelo_ts      Angelo Dureghello <angelo@sysam.it>
 alias galak          Kumar Gala <galak@kernel.crashing.org>
 alias gruss          Graeme Russ <graeme.russ@gmail.com>