PCEP Protocol code restructured to move under PCEP Server code for more readability. Later Client code can be added under client folder.

Change-Id: Ie79599a170d94d8e0a00e0d034b083b3894199ee
diff --git a/providers/bgpcep/flow/BUCK b/providers/bgpcep/flow/BUCK
index d7ee5a1..2115eb2 100644
--- a/providers/bgpcep/flow/BUCK
+++ b/providers/bgpcep/flow/BUCK
@@ -3,7 +3,7 @@
   '//lib:org.osgi.compendium',
   '//protocols/bgp/api:onos-protocols-bgp-api',
   '//incubator/api:onos-incubator-api',
-  '//protocols/pcep/api:onos-protocols-pcep-api',
+  '//protocols/pcep/server/api:onos-protocols-pcep-server-api',
   '//protocols/pcep/pcepio:onos-protocols-pcep-pcepio',
 ]