P4Runtime Mellanox driver for fabric.p4

Change-Id: I321eba750b30d2aab1a792933dbbc3d1d9740f03
diff --git a/modules.defs b/modules.defs
index 13f485a..f574d9d 100644
--- a/modules.defs
+++ b/modules.defs
@@ -110,6 +110,7 @@
     '//drivers/oplink:onos-drivers-oplink-oar',
     '//drivers/bmv2:onos-drivers-bmv2-oar',
     '//drivers/barefoot:onos-drivers-barefoot-oar',
+    '//drivers/mellanox:onos-drivers-mellanox-oar',
     '//drivers/hp:onos-drivers-hp-oar',
     '//drivers/p4runtime:onos-drivers-p4runtime-oar',
     '//drivers/gnmi:onos-drivers-gnmi-oar',