RFR (also tedious) 8216167: Update include guards to reflect correct directories

[Kim Barrett]

> On Jan 10, 2019, at 7:34 AM, coleen.phillimore at oracle.com wrote:
> 
> 
> No takers?  This fixes the include guard to match the file name in 1540 header files.
> 
> If you add a header file, please use the file name after src/hotspot as the include guard name from now on (exclude the VM that used to be there).
> 
> http://cr.openjdk.java.net/~coleenp/8216167.01.diff.02

This deals with my issue (from the #pragma once thread) about the share/include files by excluding them from the changes.

The pre-existing guard name for share/include/cds.h might not be good, but that’s not a problem with this change.

This has also dealt with the incorrect changes to globalDefinitions_arm.hpp that I previously mentioned.

Looks like Erik has done a good job of checking your patch.  I don’t have anything to add to that.  Looks good to me.