Rename test property vm.cds.archived.java.heap to vm.cds.write.archived.java.heap

The vm.cds.archived.java.heap test property (see test/jtreg-ext/requires/VMProps.java) is ambiguous -- after JDK-8270489, there are two distinct capabilities:

HeapShared::can_write() -- G1 only
HeapShared::can_read() -- G1, Epsilon

A few CDS tests are marked with

    @requires vm.cds.archived.java.heap

These tests actually require the VM to be able to write Java objects into the CDS archive. Therefore, for clarify, they should be changed to use

    @requires vm.cds.write.archived.java.heap