Changing the default pw transport vlan to 4090 instead of 4093.

Also adding component config options for pw transport vlan and default internal vlan.

Change-Id: I8bb48530e46db8534b825eecd9aea781fe3f0de1
diff --git a/apps/segmentrouting/app/src/main/java/org/onosproject/segmentrouting/pwaas/DefaultL2TunnelHandler.java b/apps/segmentrouting/app/src/main/java/org/onosproject/segmentrouting/pwaas/DefaultL2TunnelHandler.java
index 9c9fb8f..fbefb76 100644
--- a/apps/segmentrouting/app/src/main/java/org/onosproject/segmentrouting/pwaas/DefaultL2TunnelHandler.java
+++ b/apps/segmentrouting/app/src/main/java/org/onosproject/segmentrouting/pwaas/DefaultL2TunnelHandler.java
@@ -483,7 +483,7 @@
             revNextHop = reverseLink(path.get(path.size() - 1));
 
             pw.l2Tunnel().setPath(path);
-            pw.l2Tunnel().setTransportVlan(srManager.PSEUDOWIRE_VLAN);
+            pw.l2Tunnel().setTransportVlan(srManager.getPwTransportVlan());
 
             // next hops for next objectives
             log.info("Deploying process : Establishing forward direction for pseudowire {}", l2TunnelId);