Skipping AllReduce test on more than 8 ranks for FP8 type on Hyabusa (#1598)

* Skipping AllReduce FP8 test on 9 to 16 ranks (gfx90a) as it's using Tree algorithm not RING

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Co-authored-by: Marzieh Berenjkoub <mberenjk@amd.com>

[ROCm/rccl commit: 5f691aaf65]

projects/rccl/test/common/EnvVars.cpp

@@ -202,6 +202,8 @@ namespace RcclUnitTesting
     getArchInfo(&isGfx94, "gfx94");
     isGfx12 = false;
     getArchInfo(&isGfx12, "gfx12");
+    isGfx90 = false;
+    getArchInfo(&isGfx90, "gfx90");
 
     showNames      = GetEnvVar("UT_SHOW_NAMES"  , 1);
     minGpus        = GetEnvVar("UT_MIN_GPUS"    , 1);