Address review comments

Signed-off-by: Antonin Bas <antonin.bas@broadcom.com>

pkg/agent/util/net_linux.go

@@ -404,8 +404,9 @@ func removeInterfaceAltName(name string, altName string) error {
 // PrepareHostInterfaceConnection prepares host interface connection to the OVS bridge client by:
 // 1. Renaming the host interface (a bridged suffix will be added to it).
 // 2. Creating an internal port (original name of the host interface will be used here).
-// 3. Moving IPs of host interface to this new link/internal-port.
-// 4. Moving routes of host interface to the new link/internal-port.
+// 3. Set the MTU of this new link/internal-port to the provided mtu parameter value, unless mtu is zero.
+// 4. Moving IPs of host interface to this new link/internal-port.
+// 5. Moving routes of host interface to the new link/internal-port.
 // and returns the bridged name, true if it already exists, and error.
 func PrepareHostInterfaceConnection(
 	bridge ovsconfig.OVSBridgeClient,