etnaviv/nn: Make parallel jobs disabled by default
What does this MR do and why?
etnaviv/nn: Make parallel jobs disabled by default
It doesn't work for all models, with the same happening to the
proprietary driver. There may be some hardware limitation on at least
what is currently supported in Mesa.
So match what the proprietary driver is doing and disable by default.
Fixes: d6473ce28ee0 ("etnaviv: Use NN cores to accelerate convolutions")