mailmap: add entry for Alexander Mikhalitsyn

My old email <alexander.mikhalitsyn@virtuozzo.com> isn't working
anymore.

Link: https://lkml.kernel.org/r/20230131123456.192657-1-aleksandr.mikhalitsyn@canonical.comSigned-off-by: NAlexander Mikhalitsyn <aleksandr.mikhalitsyn@canonical.com>
Signed-off-by: NAndrew Morton <akpm@linux-foundation.org>

.mailmap

@@ -25,6 +25,8 @@ Aleksey Gorelov <aleksey_gorelov@phoenix.com>
 Alexander Lobakin <alobakin@pm.me> <alobakin@dlink.ru>
 Alexander Lobakin <alobakin@pm.me> <alobakin@marvell.com>
 Alexander Lobakin <alobakin@pm.me> <bloodyreaper@yandex.ru>
+Alexander Mikhalitsyn <alexander@mihalicyn.com> <alexander.mikhalitsyn@virtuozzo.com>
+Alexander Mikhalitsyn <alexander@mihalicyn.com> <aleksandr.mikhalitsyn@canonical.com>
 Alexandre Belloni <alexandre.belloni@bootlin.com> <alexandre.belloni@free-electrons.com>
 Alexei Starovoitov <ast@kernel.org> <alexei.starovoitov@gmail.com>
 Alexei Starovoitov <ast@kernel.org> <ast@fb.com>