RFR(XS): 8245070: 32-bit builds are broken after JDK-8242524

[Yumin Qi]

There is a copy/paste caused mismatch:

On 5/15/20 10:49 AM, Yumin Qi wrote:
> Hi,
>
>   Please review the xsmall change for
>   bug: 8245070: https://bugs.openjdk.java.net/browse/JDK-8245070
>   webrev: http://cr.openjdk.java.net/~minqi/2020/8245070/webrev-00/
>
>   The change of 8245070 broke build for 32 bits, since no compressed 
> oops on 32 bits. Guard the change for 64 bits only.
8245070 => 8242524.

Thanks
Yumin
>   I could not build 32 bits --- have no 32 bit platform to make sure 
> of the change, so please give a detail look. The variable 
> OPENJDK_TARGET_CPU_BITS is copied from other file.
>
> Thanks
> Yumin