Update requires field due to upstream change in OpenJDK provides

Redhat changed their provides statement for the OpenJDK package (https://bugzilla.redhat.com/show_bug.cgi?id=1030634), deprecating the java7/jre7 virtual dependencies.

Fedora/RHEL/CentOS already have the update Java package causing this headache and Scientific Linux has the change in 6.5, which is currently in the '6rolling' tree.