Add a few entries to .mailmap

.mailmap

@@ -50,3 +50,13 @@ Ted Ts'o <tytso@mit.edu>
 Tobias Klauser <tklauser@access.unizh.ch>
 Tobias Klauser <tklauser@access.unizh.ch> <tklauser@access.unizh.chbk>
 Tobias Klauser <tklauser@access.unizh.ch> <klauser@access.unizh.ch>
+Patrick Mansfield <patmans@us.ibm.com>
+Christophe Varoqui <christophe.varoqui@free.fr>
+Daniel Stekloff <dsteklof@us.ibm.com>
+Michael Buesch <mbuesch@freenet.de>
+Olaf Hering <olh@suse.de>
+Robert Love <rml@tech9.net>
+Arnd Bergmann <arnd@arndb.de>
+Tom Rini <trini@kernel.crashing.org>
+Paul Mundt <lethal@linux-sh.org>
+Atul Sabharwal <atul.sabharwal@intel.com>