[8u] RFC: Pick up recent aarch64-port cleanups

[Aleksey Shipilev]

On 3/1/21 12:42 PM, Aleksey Shipilev wrote:
> There are a few code improvements in aarch64-port that we want to pick up and test before proposing
> the integration back. The pickup is clean, only affects hotspot repository, and gets merged
> automatically.
> 
> Testing: hotspot_gc_shenandoah {fastdebug,release}

Anyone?

-- 
Thanks,
-Aleksey