Fixes broken Makefile as well as fixes management network for single-node-pod (development) environments.

When Makefiles were refactored as part of  https://gerrit.opencord.org/gitweb?p=service-profile.git;a=commitdiff;h=3670f448a2d287e5471eeb53f20fc9c4832f19b0

include $(COMMON_DIR)/Makefile should have been included in mcord's Makefile.

Also xos is built around the rack server's management network. Including the default to work for single-node-pod mcord development environments.

Change-Id: Ic8482bb3e55f0cfceea0f37eb61514f6bf58696d
diff --git a/mcord/Makefile b/mcord/Makefile
index c4a1101..3c340ae 100644
--- a/mcord/Makefile
+++ b/mcord/Makefile
@@ -8,6 +8,8 @@
 DOCKER_PROJECT     ?= mcord
 BOOTSTRAP_PROJECT  ?= mcordbs
 
+include $(COMMON_DIR)/Makefile
+
 xos: prereqs config_dirs xos_download cord_services cord_libraries bootstrap onboarding podconfig
 
 onboarding: