508880: [Fix] Use implicit dependencies to avoid forcing the installation of specific plugins

Added RMF update site
diff --git a/org.eclipse.capra.releng.p2/pom.xml b/org.eclipse.capra.releng.p2/pom.xml
index 47709d2..87bff2c 100644
--- a/org.eclipse.capra.releng.p2/pom.xml
+++ b/org.eclipse.capra.releng.p2/pom.xml
@@ -66,6 +66,7 @@
               <associateSites>
                 <site>http://download.eclipse.org/releases/neon</site>
                 <site>http://basar.idi.ntnu.no/svn/tdt4100/anonymous/trunk/updatesite</site>
+                <site>http://download.eclipse.org/rmf/updates/releases</site>
               </associateSites>
             </configuration>
           </execution>