Fix the typo of yangloader (onoproject -> onosproject)

Change-Id: I891819cb683018b32be450d6f694dc5909ebd6f0
diff --git a/tools/package/yangtools/pom.xml b/tools/package/yangtools/pom.xml
index ecbb972..2ee7b26 100644
--- a/tools/package/yangtools/pom.xml
+++ b/tools/package/yangtools/pom.xml
@@ -65,7 +65,7 @@
                         <configuration>
                             <transformers>
                                 <transformer implementation="org.apache.maven.plugins.shade.resource.ManifestResourceTransformer">
-                                    <mainClass>org.onoproject.yangtool.YangLoaderMain</mainClass>
+                                    <mainClass>org.onosproject.yangtool.YangLoaderMain</mainClass>
                                 </transformer>
                             </transformers>
                         </configuration>