phosphor-certificate-manager: Package nslcd authority service

Added service to support CA certificate

To start/stop service use commands
systemctl start phosphor-certificate-manager@authority.service
systemctl status phosphor-certificate-manager@authority.service

(From meta-ibm rev: 3f95d3f0b6e26e199afd363f1d3c4a6f7a88adb4)

Change-Id: I4e7af1156da7a48b19dd1b08e57dd548d24c04b1
Signed-off-by: Marri Devender Rao <devenrao@in.ibm.com>
Signed-off-by: Brad Bishop <bradleyb@fuzziesquirrel.com>
diff --git a/meta-ibm/recipes-phosphor/image/obmc-phosphor-image.bbappend b/meta-ibm/recipes-phosphor/image/obmc-phosphor-image.bbappend
index fd9e3cf..d1fe57f 100644
--- a/meta-ibm/recipes-phosphor/image/obmc-phosphor-image.bbappend
+++ b/meta-ibm/recipes-phosphor/image/obmc-phosphor-image.bbappend
@@ -1,4 +1,5 @@
 OBMC_IMAGE_EXTRA_INSTALL_append = "\
     phosphor-nginx-cert-config \
     phosphor-nslcd-cert-config \
+    phosphor-nslcd-authority-cert-config \
     "