mailmap: add entries for Hans Verkuil

Map my work email and my 'courtesy' hverkuil-cisco email to my
standard personal email.

Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl>
Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>

.mailmap

@@ -244,6 +244,8 @@ Guru Das Srinagesh <quic_gurus@quicinc.com> <gurus@codeaurora.org>
 Gustavo Padovan <gustavo@las.ic.unicamp.br>
 Gustavo Padovan <padovan@profusion.mobi>
 Hanjun Guo <guohanjun@huawei.com> <hanjun.guo@linaro.org>
+Hans Verkuil <hverkuil@xs4all.nl> <hansverk@cisco.com>
+Hans Verkuil <hverkuil@xs4all.nl> <hverkuil-cisco@xs4all.nl>
 Heiko Carstens <hca@linux.ibm.com> <h.carstens@de.ibm.com>
 Heiko Carstens <hca@linux.ibm.com> <heiko.carstens@de.ibm.com>
 Heiko Stuebner <heiko@sntech.de> <heiko.stuebner@bqreaders.com>