nvc0/pfifo: Fix typos.
nvc0/pfifo: Fix typos.

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