DPL: Use X9 to make AsyncQueue atomic

[ktf]

No description provided.

[github-actions]

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[alibuild]

Error while checking build/O2/fullCI for f906546 at 2024-09-19 13:16:

## sw/BUILD/O2-latest/log
c++: error: unrecognized command-line option '--rtlib=compiler-rt'
c++: error: unrecognized command-line option '--rtlib=compiler-rt'
/sw/SOURCES/O2/13529-slc8_x86-64/0/Framework/Core/include/Framework/AsyncQueue.h:96:8: error: 'atomic' in namespace 'std' does not name a template type
/sw/SOURCES/O2/13529-slc8_x86-64/0/Framework/Core/src/AsyncQueue.cxx:48:51: error: 'struct o2::framework::AsyncQueue' has no member named 'first'
/sw/SOURCES/O2/13529-slc8_x86-64/0/Framework/Core/src/AsyncQueue.cxx:60:9: error: 'struct o2::framework::AsyncQueue' has no member named 'first'
ninja: build stopped: subcommand failed.

Full log here.

[ktf]

Tested on hyperloop as well. Merging.