[qca-nss-ecm] Add new method to destroy OVS routed flows

With this new method, when an OVS routed flow rule is deleted
based on the MAC address, the bridge connections will not be
deleted which are also created from/to the same node.

Signed-off-by: Murat Sezgin <msezgin@codeaurora.org>
Change-Id: I06eb2449bfb13613a5ef814e9dae3fcecaa6de75
3 files changed