drm/gf100-/gr: unhardcode bundle cb config

Should be the same values as before, except:

GF117 has smaller buffer allocated, as per register setup.
GK20A now uses values from Tegra driver, not GK104's.

Signed-off-by: Ben Skeggs <bskeggs@redhat.com>

diff --cc drivers/gpu/drm/nouveau/core/engine/graph/ctxgk110b.c
Simple merge

diff --cc drivers/gpu/drm/nouveau/core/engine/graph/ctxgk20a.c
Simple merge

diff --cc drivers/gpu/drm/nouveau/core/engine/graph/ctxgm107.c
Simple merge

diff --cc drivers/gpu/drm/nouveau/core/engine/graph/ctxnv108.c
Simple merge

diff --cc drivers/gpu/drm/nouveau/core/engine/graph/ctxnvc0.c
Simple merge

diff --cc drivers/gpu/drm/nouveau/core/engine/graph/ctxnvc0.h
Simple merge

diff --cc drivers/gpu/drm/nouveau/core/engine/graph/ctxnvc1.c
Simple merge

diff --cc drivers/gpu/drm/nouveau/core/engine/graph/ctxnvc4.c
Simple merge

diff --cc drivers/gpu/drm/nouveau/core/engine/graph/ctxnvc8.c
Simple merge

diff --cc drivers/gpu/drm/nouveau/core/engine/graph/ctxnvd7.c
Simple merge

diff --cc drivers/gpu/drm/nouveau/core/engine/graph/ctxnvd9.c
Simple merge

diff --cc drivers/gpu/drm/nouveau/core/engine/graph/ctxnve4.c
Simple merge

diff --cc drivers/gpu/drm/nouveau/core/engine/graph/ctxnvf0.c
Simple merge