gitignore: Add new generated files

Some files are now generated that didn't exist before.

Change-Id: Ib1153496cba30688aecb939e3e1cc7acc7e744c9
Signed-off-by: William A. Kennington III <wak@google.com>
diff --git a/.gitignore b/.gitignore
index 96b35f1..6e54fa7 100644
--- a/.gitignore
+++ b/.gitignore
@@ -30,6 +30,7 @@
 # https://www.gnu.org/software/libtool/
 
 /ltmain.sh
+/libtool
 
 # http://www.gnu.org/software/texinfo
 
@@ -41,6 +42,7 @@
 /config.h.in~
 /config.log
 /config.status
+/ncsi-netlink
 /phosphor-network-manager
 Makefile
 .deps
@@ -49,6 +51,9 @@
 test/*.log
 test/*.trs
 test/test_dns_updater
+test/test
+/xyz.openbmc_project.Network.conf
+/xyz.openbmc_project.Network.service
 
 # https://www.gitignore.io/api/python
 # Byte-compiled / optimized / DLL files