tuned: fix dbus conf rules loading issue

Issue:
After installing the dbus conf rules, dbus doesn't load them automatically
and subsequent start of the service fails with following error
'''
  File "/usr/lib/python3.11/site-packages/dbus/connection.py", line 634, in call_blocking
    reply_message = self.send_message_with_reply_and_block(
                    ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
dbus.exceptions.DBusException: org.freedesktop.DBus.Error.AccessDenied: Connection ":1.22" is not allowed to own the service "com.redhat.tuned" due to security policies in the configuration file
'''
Fix:
Relaod the dbus conf rules using below command:
`killall -HUP dbus-daemon`

Change-Id: Ic043b13e4aaa74fa629ec3d7783b180af6aa5861
Signed-off-by: Ankit Jain <ankit-aj.jain@broadcom.com>
Reviewed-on: http://photon-jenkins.eng.vmware.com:8082/c/photon/+/23961
Tested-by: gerrit-photon <photon-checkins@vmware.com>
Reviewed-by: Shreenidhi Shedi <shreenidhi.shedi@broadcom.com>

SPECS/tuned/tuned.spec

@@ -1,6 +1,6 @@
 Name:           tuned
 Version:        2.21.0
-Release:        2%{?dist}
+Release:        3%{?dist}
 Summary:        A dynamic adaptive system tuning daemon
 License:        GNU GENERAL PUBLIC LICENSE Version 2
 Group:          System/Base
@@ -38,6 +38,7 @@ Requires:       linux-python3-perf
 Requires:       irqbalance
 Requires:       systemd
 Requires:       virt-what
+Requires(post): psmisc
 
 %if 0%{?with_check}
 BuildRequires:  curl-devel
@@ -96,6 +97,12 @@ pip3 install unittest2
 make test %{?_smp_mflags}
 
 %post
+# After installing the dbus conf rules, dbus doesn't load them automatically
+# and subsequent start of the service fails
+# Fix: relaod the dbus conf rules using below command
+if [ $1 = 1 ] ; then
+  %{_bindir}/killall -HUP dbus-daemon 2>&1 > /dev/null
+fi
 %systemd_post tuned.service
 
 %preun
@@ -149,6 +156,8 @@ make test %{?_smp_mflags}
 %{_mandir}/man8/scomes.*
 
 %changelog
+* Thu May 23 2024 Ankit Jain <ankit-aj.jain@broadcom.com> 2.21.0-3
+- Fix dbus rule loading issue
 * Fri Mar 22 2024 Shreenidhi Shedi <shreenidhi.shedi@broadcom.com> 2.21.0-2
 - Bump version as a part of dbus upgrade
 * Tue Jan 23 2024 Roye Eshed <roye.eshed@broadcom.com> 2.21.0-1