added missing descriptions to pom files

Change-Id: I6a8f15ce7cc706ef970dd5c98f6c0320bf8ad821
diff --git a/providers/pcep/pom.xml b/providers/pcep/pom.xml
index be44013..66a7114 100644
--- a/providers/pcep/pom.xml
+++ b/providers/pcep/pom.xml
@@ -8,6 +8,7 @@
   </parent>
   <artifactId>onos-pcep-providers</artifactId>
   <packaging>pom</packaging>
+  <description>PCEP protocol providers root</description>
   <modules>
   	<module>topology</module>
   	<module>tunnel</module>