Ticket 48935 - Update dirsrv.systemd file

BUg Description:  Two issues here.  First the default system startup timeout
                  is set to 1 minute 30 seconds.  But in the start-dirsrv script
                  it attempts to use a 10 minute timeout.

                  Second, starting in F23 systemd does not work well with valgrind.
                  systemd does not accept the notification once the DS starts.
                  So the start command actually fails after it times out.

Fix Description:  For the first issue set the system startup timeout to match the
                  start-dirsrv script by setting:

                        TimeoutStartSecs=10min

                  Second, allow valgrind's startup success message to be
                  recognized/accepted we set:

                        NotifyAccess=all

https://fedorahosted.org/389/ticket/48935

Reviewed by: nhosoi(Thanks!)

wrappers/systemd.template.sysconfig

@@ -1,3 +1,6 @@
 [Service]
+TimeoutStartSec=10m
+NotifyAccess=all
+
 # uncomment this line to raise the file descriptor limit
 # LimitNOFILE=8192