etnaviv: initialize vertex attributes on context reset
It seems that at least some GC400 come out of reset with random vertex attributes enabled and also don't disable them on the write to the first config register as normal. Enabling all attributes seems to provide the GPU with the required edge to actually disable the unused attributes on the next draw. Cc: mesa-stable Reported-by: Steven Walter Signed-off-by:Lucas Stach <l.stach@pengutronix.de> Reviewed-by:
Christian Gmeiner <christian.gmeiner@gmail.com> Part-of: <mesa/mesa!14285> (cherry picked from commit c1f8bc67)