Apply systemd-preset in clevis-systemd postinstall

This change calls "systemd preset" command after
clevis-systemd postinstall, so that it applies
distro global policies after installation, allowing
to start the service when global policies indicate so

Signed-off-by: Sergio Arroutbi <sarroutb@redhat.com>

clevis.spec

@@ -1,6 +1,6 @@
 Name:           clevis
 Version:        18
-Release:        6%{?dist}
+Release:        7%{?dist}
 Summary:        Automated decryption framework
 
 License:        GPLv3+
@@ -45,6 +45,7 @@ Requires:       jose >= 8
 Requires:       curl
 Requires:       jq
 Requires(pre):  shadow-utils
+Requires(post): systemd
 Recommends:     cracklib-dicts
 Recommends:     clevis-pin-tpm2
 
@@ -130,17 +131,6 @@ if getent group tss >/dev/null && ! groups %{name} | grep -q "\btss\b"; then
 fi
 exit 0
 
-%posttrans
-# In case the clevis-luks-askpass is enabled, make sure it's using the
-# correct target, which changed in v14.
-[ "$(find /etc/systemd/system/ -name "clevis-luks-askpass*")" ] || exit 0
-find /etc/systemd/system/ -name "clevis-luks-askpass*" \
-     | grep -q cryptsetup.target.wants && exit 0
-
-find /etc/systemd/system/ -name "clevis-luks-askpass*" -exec rm {} +
-systemctl enable clevis-luks-askpass.path >/dev/null 2>&1 || :
-exit 0
-
 %files
 %license COPYING
 %{_datadir}/bash-completion/
@@ -194,7 +184,13 @@ exit 0
 %{_sysconfdir}/xdg/autostart/%{name}-luks-udisks2.desktop
 %attr(4755, root, root) %{_libexecdir}/%{name}-luks-udisks2
 
+%post systemd
+systemctl preset %{name}-luks-askpass.path >/dev/null 2>&1 || :
+
 %changelog
+* Tue Jun 28 2022 Sergio Arroutbi <sarroutb@redhat.com> - 18-7
+  Start clevis-luks-askpass.patch service according to global policy
+
 * Wed Jan 19 2022 Fedora Release Engineering <releng@fedoraproject.org> - 18-6
 - Rebuilt for https://fedoraproject.org/wiki/Fedora_36_Mass_Rebuild