hg: loom/loom: Fix build. Only update link in register map.

[rickard.backman at oracle.com]

Changeset: 3685d6055e17
Author:    rbackman
Date:      2018-10-15 14:04 +0200
URL:       http://hg.openjdk.java.net/loom/loom/rev/3685d6055e17

Fix build. Only update link in register map.

! src/hotspot/cpu/x86/frame_x86.cpp
! src/hotspot/share/compiler/oopMap.cpp
! src/hotspot/share/compiler/oopMap.inline.hpp
! src/hotspot/share/runtime/continuation.cpp
! src/hotspot/share/runtime/frame.cpp
! src/hotspot/share/runtime/registerMap.hpp