stress-ng fork updated to 4164f684 (V0.15.02)

[Po-Hsu Lin]

Hello folks,

I have our stress-ng fork updated to 4164f684 (V0.15.02)

Apart from tests covered by Colin, this version has been tested
on our bare-metal / GCP pool with all available architectures in
B/F/J/K generic kernel.

Here is the note from Colin for this update:

I've made a new release of stress-ng 0.15.04.  This fixes quite a few
buglets, including:

* https://bugs.launchpad.net/bugs/1999731
* stress-mremap: fix mremap with MAP_FIXED and no target address to use NULL
* fix mktemp file leak in Makefile
* stress-atomic: fix non-indexing of atomic lock space
* stress-misaligned: disable misaligned atomic ops on PPC64 with older gcc

New stressors include:

* umount stressor to force umount races
* waitcpu stressor to test tpause and new x86 umonitor, umwait opcodes
and ppc64 yield opcodes.

PPC now does prefetching tests in the prefetch stressor

I've also added a load more x86 optimizations too.

This has also been testing on Linux 6.1 too.

Thanks
Sam