sync artifactId with buck artifact

- pcep app related

Change-Id: I1ba0a966d14fee52268cd195e843d3354a599940
diff --git a/apps/pcep-api/pom.xml b/apps/pcep-api/pom.xml
index 52f1a9e..a2d899d 100644
--- a/apps/pcep-api/pom.xml
+++ b/apps/pcep-api/pom.xml
@@ -23,7 +23,7 @@
         <artifactId>onos-apps</artifactId>
         <version>1.12.0-SNAPSHOT</version>
     </parent>
-    <artifactId>onos-app-pcep-api</artifactId>
+    <artifactId>onos-apps-pcep-api</artifactId>
     <packaging>bundle</packaging>
 
     <description>PCEP protocol API</description>