[Nouveau] [RFC/PATCH] Switch dri driver to use rules-ng-ng headers

[Viktor Novotný]

From: Viktor Novotný <noviktor at seznam.cz>

Hi,

following patches make the dri driver use rules-ng-ng(rnn) generated register definitions instead of renouveau generated ones.
First set of 5 patches is for mesa repository, second set of 4 patches is for rnn and consists of changes ported from renouveau.

One thing I do not understand is, why rnn does not generate NV20_3D_TEX_ENABLE__LEN(should be 4), so any pointers on what to 
do are welcome, as are any other comments, suggestions etc.

Regards
	Viktor