Add new LDAP config package

Package app phosphor-ldap-conf. This app implements an API to update
the LDAP config file i.e /etc/nslcd.conf.

This commit also creates a file:/etc/nslcd.conf.default, which is to
be restored as /etc/nslcd.conf when we disable LDAP configuration.

Change-Id: Icde4264f4a9337775563f344fd2e300bf0897c52
Signed-off-by: Nagaraju Goruganti <ngorugan@in.ibm.com>
diff --git a/recipes-phosphor/packagegroups/packagegroup-obmc-apps.bb b/recipes-phosphor/packagegroups/packagegroup-obmc-apps.bb
index d6537f5..6e23d15 100644
--- a/recipes-phosphor/packagegroups/packagegroup-obmc-apps.bb
+++ b/recipes-phosphor/packagegroups/packagegroup-obmc-apps.bb
@@ -139,4 +139,5 @@
 RDEPENDS_${PN}-user-mgmt = " \
         ${VIRTUAL-RUNTIME_obmc-user-mgmt} \
         ${@bb.utils.contains('DISTRO_FEATURES', 'ldap', 'nss-pam-ldapd', '', d)} \
+        ${@bb.utils.contains('DISTRO_FEATURES', 'ldap', 'phosphor-ldap', '', d)} \
         "