nvatiming: do not block when fuc engines' clock is 0 MHz
nvatiming: do not block when fuc engines' clock is 0 MHz

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