* update AG direct and single node LL threshold
* update thresholds based on MI350 expeirmental results
* disable using LL for direct AG
* enable direct AG for lower GPU counts
* direct AG single node tuning
* fix in-place buffer allocation for AG unit test
* whitespace fix
* gate direct AG for gfx950 and gfx942
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Co-authored-by: Nusrat Islam <nusislam@nova-login-gtu2.prov.gtu.zts.cpe.ice.amd.com>
[ROCm/rccl commit: d22a39e954]
* removing extra build time by removing the gfx11xx arch from using hip_fp8
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Co-authored-by: Marzieh Berenjkoub <mberenjk@amd.com>
[ROCm/rccl commit: 697bee4ee8]
* initial checkin
* resolve cr comments
* resolve the build issue
* fix the data correctless issue
* update fp8 header file and update the unit test for fp8 support
* remove fp16 from fp8 headers
* fix ut issue and catch up the latest code from develop
* udate according to cr comments
* update ut according to cr comments
* update num floats for each SumPostDiv from 4 to 6
* update fp8 header file name
* fix the typo
[ROCm/rccl commit: 6777e65c1d]