public long getPartitionSizeInBase2Gb(NodeType nodeType, boolean sharedHost) {
        return new PartitionSizer(nodeType, sharedHost).getPartitionSize();
    }
Matches the internal repo implementation

@author hakonhall
@author musum
node-repository/src/test/java/com/yahoo/vespa/hosted/provision/autoscale/awsnodes/ReservedSpacePolicyImpl.java