RFR: 8231776: ZGC: Fix incorrect address space description

[Per Liden]

Thanks!

/Per

On 10/3/19 10:56 AM, erik.osterlund at oracle.com wrote:
> Hi Per,
> 
> Looks good.
> 
> /Erik
> 
> On 10/3/19 12:28 AM, Per Liden wrote:
>> After JDK-8224820, the space between the Remapped heap view and the 
>> Marked1 heap view is no longer reserved. The ASCII art describing the 
>> address space layout should be updated to reflect that.
>>
>> Bug: https://bugs.openjdk.java.net/browse/JDK-8231776
>> Webrev: http://cr.openjdk.java.net/~pliden/8231776/webrev.0
>>
>> /Per
>