MAINTAINERS: change Vladimir's email address

Old vsementsov@virtuozzo.com is not accessible anymore.

Signed-off-by: Vladimir Sementsov-Ogievskiy <v.sementsov-og@mail.ru>
Message-Id: <20220316092702.426629-1-v.sementsov-og@mail.ru>
Signed-off-by: Eric Blake <eblake@redhat.com>

MAINTAINERS

@@ -2507,7 +2507,7 @@ F: scsi/*
 
 Block Jobs
 M: John Snow <jsnow@redhat.com>
-M: Vladimir Sementsov-Ogievskiy <vsementsov@virtuozzo.com>
+M: Vladimir Sementsov-Ogievskiy <v.sementsov-og@mail.ru>
 L: qemu-block@nongnu.org
 S: Supported
 F: blockjob.c
@@ -2546,7 +2546,7 @@ T: git https://repo.or.cz/qemu/armbru.git block-next
 
 Dirty Bitmaps
 M: Eric Blake <eblake@redhat.com>
-M: Vladimir Sementsov-Ogievskiy <vsementsov@virtuozzo.com>
+M: Vladimir Sementsov-Ogievskiy <v.sementsov-og@mail.ru>
 R: John Snow <jsnow@redhat.com>
 L: qemu-block@nongnu.org
 S: Supported
@@ -2770,13 +2770,13 @@ F: scripts/*.py
 F: tests/*.py
 
 Benchmark util
-M: Vladimir Sementsov-Ogievskiy <vsementsov@virtuozzo.com>
+M: Vladimir Sementsov-Ogievskiy <v.sementsov-og@mail.ru>
 S: Maintained
 F: scripts/simplebench/
 T: git https://src.openvz.org/scm/~vsementsov/qemu.git simplebench
 
 Transactions helper
-M: Vladimir Sementsov-Ogievskiy <vsementsov@virtuozzo.com>
+M: Vladimir Sementsov-Ogievskiy <v.sementsov-og@mail.ru>
 S: Maintained
 F: include/qemu/transactions.h
 F: util/transactions.c
@@ -3360,7 +3360,7 @@ F: block/iscsi-opts.c
 
 Network Block Device (NBD)
 M: Eric Blake <eblake@redhat.com>
-M: Vladimir Sementsov-Ogievskiy <vsementsov@virtuozzo.com>
+M: Vladimir Sementsov-Ogievskiy <v.sementsov-og@mail.ru>
 L: qemu-block@nongnu.org
 S: Maintained
 F: block/nbd*
@@ -3456,7 +3456,7 @@ F: block/dmg.c
 parallels
 M: Stefan Hajnoczi <stefanha@redhat.com>
 M: Denis V. Lunev <den@openvz.org>
-M: Vladimir Sementsov-Ogievskiy <vsementsov@virtuozzo.com>
+M: Vladimir Sementsov-Ogievskiy <v.sementsov-og@mail.ru>
 L: qemu-block@nongnu.org
 S: Supported
 F: block/parallels.c