Do not connect the default routing instance with the service chain routing instance because in case of more than one policy rule, it could create an ECMP route in default routing instance.
Instead, connect it to the remote network so that we can get the origin VN.

Change-Id: Ib6ef3fe9cc3eeb3adc4791863ca1e4d7bb912281
Merge "Do not connect the default routing instance with the service chain routing instance because in case of more than one policy rule, it could create an ECMP route in default routing instance. Instead, connect it to the remote network so that we can get the origin VN."