nouveau: make sure to invalidate any vbo state as well
nouveau: make sure to invalidate any vbo state as well

Reviewed-by: Francisco Jerez <5906ff32bdd9fd8db196f6ba5ad3afd6f9257ea5@riseup.net>
Signed-off-by: Ilia Mirkin <bcbbb7aa705ec3a5fc5824c01a845186c3d62fca@alum.mit.edu>
Cc: <59f39c0db42d4479a46b02d4d2bc11120e37bb44@lists.freedesktop.org>

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