RFR : 8217786: Provide virtualization related info in the hs_error file on linux s390x

[Baesken, Matthias]

Hello, please review  this change ; it adds  virtualization related info in the hs_error file on linux s390x .

On linux s390x, we usually  (always?)   run in virtualized environments (LPAR and/or z/VM / KVM ).

It is helpful for instance in support cases to get some information about the virtualized environment in the hs_error file .
A lot of info can be taken from the /proc/sysinfo file on linux s390x .


Bug/webrev :

https://bugs.openjdk.java.net/browse/JDK-8217786


http://cr.openjdk.java.net/~mbaesken/webrevs/8217786.1/



Best regards, Matthias