[AMQ-7400] Fix OSGi headers for sun.rmi

Author: jbonofre

activemq-osgi/pom.xml

@@ -41,6 +41,7 @@
       !com.google.j2objc.annotations,
       sun.misc*;resolution:=optional,
       sun.nio*;resolution:=optional,
+      sun.rmi*;resolution:=optional,
       javax.jmdns*;resolution:=optional,
       javax.resource*;resolution:=optional,
       javax.servlet*;resolution:=optional,