stress-ng: backport immintrin.h header detection for GCC 13

[commodo]

Maintainer: me
Compile tested: x86_64 openwrt/openwrt@e66eed0
Run tested: n/a

With GCC 12 there is no issue.
With GCC 13, there is a compilation issue on x86_64. Fixes #22373
Fixes #22373

[oskarirauta]

I can verify this. Fixes #22373.
LGTM

[BKPepe]

Maybe, we can slow down a little bit with merging this as upstream is also interested in fixing this.

[commodo]

Maybe, we can slow down a little bit with merging this as upstream is also interested in fixing this.

Fine from my side

[oskarirauta]

stress-ng repo was just committed a fix to this issue:
ColinIanKing/stress-ng@cd84c46

I think we could adopt it as a patch, until next version is released. I have not tested if this works or not. I am using original patch from this PR.

[commodo]

stress-ng repo was just committed a fix to this issue: ColinIanKing/stress-ng@cd84c46

I think we could adopt it as a patch, until next version is released. I have not tested if this works or not. I am using original patch from this PR.

ack;
will do that now

[BKPepe]

Commit subject needs to be polished a little bit.

[commodo]

Commit subject needs to be polished a little bit.

ack;
was going to do that, but got side-tracked