rnndb/graph/gf100: document and rename L1.PM_UNK3C to L1.CFG_WM
rnndb/graph/gf100: document and rename L1.PM_UNK3C to L1.CFG_WM

Taken out from:
https://android.googlesource.com/kernel/tegra/+/b445e5296764d18861a6450f6851f25b9ca59dee/drivers/video/tegra/host/gk20a/hw_gr_gk20a.h

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