RFR(XS): 8213410: UseCompressedOops @requirement check fails fails on 32-bit system

[Boris Ulasevich]

Hi all,

Please review this patch to fix jtreg @requires 
vm.opt.final.UseCompressedOops flag evaluation fail reproduced on ARM32: 
"invalid boolean value: null for expression 
vm.opt.final.UseCompressedOops".

http://cr.openjdk.java.net/~bulasevich/8213410/webrev.00/
https://bugs.openjdk.java.net/browse/JDK-8213410

The fix was checked on ARM32 (tests disabled) and AARCH64 (works Ok by 
default, and becomes disabled with -javaoptions:"-XX:-UseCompressedOops" 
jtreg option).

Thanks,
Boris Ulasevich