Set default debconf slapd/no_configuration to true

The debian packaging for openldap by default initializes the ldap DB
unless debconf tells otherwise. This patch will set the default value of
the debconf so the installation doesn't trigger this initialization and
generate garbage on the database (entries related to an admin user on
dc=nodomain).

TEST PLAN
PASS Build new ISO and install, verify slapcat for entries on DB
PASS Bootstrap with no errors
PASS Restore backup

Story: 2009303
Task: 45752
Signed-off-by: Thiago Brito <thiago.brito@windriver.com>
Change-Id: I60786a6b9f46619b328cf00d6bdbdf0cc95c9c35

ldap/openldap/debian/deb_patches/0003-Chg-default-debconf-slapd-no_configuration-to-true.patch

@@ -0,0 +1,30 @@
+From 7e1514545f00f90c4b20a20f8cc5eee824804a32 Mon Sep 17 00:00:00 2001
+From: Thiago Brito <thiago.brito@windriver.com>
+Date: Thu, 7 Jul 2022 20:53:58 -0300
+Subject: [PATCH] Chg default debconf slapd/no_configuration to true
+
+This is needed so we let StarlingX initialize the LDAP database.
+
+Signed-off-by: Thiago Brito <thiago.brito@windriver.com>
+---
+ debian/slapd.templates | 4 ++--
+ 1 file changed, 2 insertions(+), 2 deletions(-)
+
+diff --git a/debian/slapd.templates b/debian/slapd.templates
+index 444613c..31850c6 100644
+--- a/debian/slapd.templates
++++ b/debian/slapd.templates
+@@ -1,8 +1,8 @@
+ Template: slapd/no_configuration
+ Type: boolean
+-Default: false
++Default: true
+ _Description: Omit OpenLDAP server configuration?
+- If you enable this option, no initial configuration or database will be
++ If you disable this option, an initial configuration or database will be
+  created for you.
+ 
+ Template: slapd/dump_database
+-- 
+2.25.1
+

ldap/openldap/debian/deb_patches/series

@@ -1,3 +1,4 @@
 debian-disable-unit-tests.patch
 0001-Change-pid-file-and-args-file-location.patch
 0002-Support-building-ppolicy-check-password-library.patch
+0003-Chg-default-debconf-slapd-no_configuration-to-true.patch