u171 and u172 updates

[Edward Nevill]

Hi Sergey,

Looks good. For future reference there is no need to post the merge
changes for review. Only any CPU specific changes.

All the best,
Ed.
 
On Fri, 2018-05-11 at 15:07 +0000, Sergey Nazarkin wrote:
> Hi!
> 
> Please review changes required for u171 and u172.
> 
> http://cr.openjdk.java.net/~snazarki/aarch32-u171/
> http://cr.openjdk.java.net/~snazarki/aarch32-u172/
> 
> No CPU specific parts are present. Verified with SPECJvm2008.