Force enable proto and/or algo after model selection (#1799)

* Force enable proto or algo

* Remove inc nccl_common.h

* Move logic and add error checks

* Fix topo_expl compatibility

* Allow algo/proto overrides

* Remove extra function decl

* Clarify warning message

* Move algo/proto overrides into separate functions

* Update CHANGELOG.md

[ROCm/rccl commit: 7ccc6f268f]

projects/rccl/src/enqueue.cc

@@ -2103,6 +2103,8 @@ static ncclResult_t topoGetAlgoInfo(
   if (info->algorithm == NCCL_ALGO_TREE) nt = NCCL_MAX_NTHREADS; // Tree now uses all threads always.
   if (info->algorithm == NCCL_ALGO_PAT) nt = NCCL_MAX_NTHREADS;
   info->nWarps = nt/comm->WarpSize;
+  rcclOverrideAlgorithm(ncclAlgoStr, table, info);
+  rcclOverrideProtocol(ncclProtoStr, table, info);
   return ncclSuccess;
 }