nvbios: Return an error if mem train subentries is above the limit to avoid stack corruption.
nvbios: Return an error if mem train subentries is above the limit to avoid stack corruption.

karolherbst/envytools,grate-driver/envytools,hakzsam/envytools,MoochMcGee/envytools,pierremoreau/envytools,grate-driver/envytools,hakzsam/envytools,envytools/envytools,pierremoreau/envytools,karolherbst/envytools,kfractal/envytools,envytools/envytools,karolherbst/envytools,hakzsam/envytools,hakzsam/envytools,kfractal/envytools,karolherbst/envytools,pierremoreau/envytools,envytools/envytools,karolherbst/envytools,envytools/envytools,kfractal/envytools,MoochMcGee/envytools,envytools/envytools,pierremoreau/envytools,grate-driver/envytools,kfractal/envytools,grate-driver/envytools,pierremoreau/envytools,kfractal/envytools,MoochMcGee/envytools,MoochMcGee/envytools,MoochMcGee/envytools,grate-driver/envytools,hakzsam/envytools