enable log4j and syslog logging in ElasticStack

Change-Id: I68be2986515df5f64aad7906995689a661dd0425
diff --git a/ansible/roles/install_elk/files/12-syslog-input.conf b/ansible/roles/install_elk/files/12-syslog-input.conf
new file mode 100644
index 0000000..d2331a8
--- /dev/null
+++ b/ansible/roles/install_elk/files/12-syslog-input.conf
@@ -0,0 +1,6 @@
+input {
+  syslog {
+    port => 2514
+    type => "syslog"
+  }
+}