hg: jdk/sandbox: 8234397: add OS uptime information to os::print_os_info output

[chris.hegarty at oracle.com]

Changeset: 3b61c66ce692
Author:    mbaesken
Date:      2019-12-03 15:17 +0100
URL:       https://hg.openjdk.java.net/jdk/sandbox/rev/3b61c66ce692

8234397: add OS uptime information to os::print_os_info output
Reviewed-by: clanger, dholmes, lucy

! src/hotspot/os/aix/os_aix.cpp
! src/hotspot/os/bsd/os_bsd.cpp
! src/hotspot/os/bsd/os_bsd.hpp
! src/hotspot/os/linux/os_linux.cpp
! src/hotspot/os/linux/os_linux.hpp
! src/hotspot/os/posix/os_posix.cpp
! src/hotspot/os/posix/os_posix.hpp
! src/hotspot/os/solaris/os_solaris.cpp
! src/hotspot/os/windows/os_windows.cpp
! src/hotspot/os/windows/os_windows.hpp
! src/hotspot/share/runtime/os.cpp
! src/hotspot/share/runtime/os.hpp