update mysqld profile

This updates the mysqld to what I use on my servers nowadays.

Note: my profile also has capability sys_resource,, but I'm not sure why I had to add this and therefore didn't include it in this merge request.

Speaking about "why I had added $whatever" - these changes were collected over the last years and of course ;-) I don't remember any details.

PR: https://gitlab.com/apparmor/apparmor/merge_requests/310
Acked-by: Seth Arnold <seth.arnold@canonical.com>
Signed-off-by: John Johansen <john.johansen@canonical.com>

profiles/apparmor/profiles/extras/usr.sbin.mysqld

@@ -3,7 +3,7 @@
 # ------------------------------------------------------------------
 #
 #    Copyright (C) 2002-2005 Novell/SUSE
-#    Copyright (C) 2014 Christian Boltz
+#    Copyright (C) 2014-2019 Christian Boltz
 #
 #    This program is free software; you can redistribute it and/or
 #    modify it under the terms of version 2 of the GNU General Public
@@ -30,13 +30,14 @@
   /etc/my.cnf.d/ r,
   /etc/my.cnf.d/*.cnf r,
   /root/.my.cnf r,
+  /sys/devices/system/cpu/online r,
   /usr/lib{,32,64}/**.so mr,
-  /usr/sbin/mysqld r,
+  /usr/sbin/mysqld mr,
   /usr/share/mariadb/*/errmsg.sys r,
   /usr/share/mysql-community-server/*/errmsg.sys r,
   /usr/share/mysql/** r,
   /var/lib/mysql/ r,
-  /var/lib/mysql/** rwl,
+  /var/lib/mysql/** rwlk,
   /var/log/mysql/mysqld-upgrade-run.log w,
   /var/log/mysql/mysqld.log w,
   /var/log/mysql/mysqld.log-20* w,