git: openjdk/mobile: 8231753: use more Posix functionality in aix os::print_os_info

[duke]

Changeset: d10abea7
Author:    Matthias Baesken <mbaesken at openjdk.org>
Date:      2019-10-08 09:33:57 +0000
URL:       https://git.openjdk.java.net/mobile/commit/d10abea7

8231753: use more Posix functionality in aix os::print_os_info

Reviewed-by: clanger, dholmes

! src/hotspot/os/aix/os_aix.cpp
! src/hotspot/os/posix/os_posix.cpp