hg: bsd-port/bsd-port/corba: Prefer hw.physmem64 if it exists, except on OpenBSD where

[kurt at intricatesoftware.com]

Changeset: 4dbbcce5bccf
Author:    kurt
Date:      2009-06-03 15:29 -0400
URL:       http://hg.openjdk.java.net/bsd-port/bsd-port/corba/rev/4dbbcce5bccf

Prefer hw.physmem64 if it exists, except on OpenBSD where
sysctl doesn't return an error upon bad input and doesn't have
hw.physmem64. From christos at zoulas.com.

! make/common/shared/Platform.gmk