Generate valid (null) render state for each gen. Output
it as a c source file with batch and relocations.
v2: noinst and vs_start fixed for BDW GT3 (Damien Lespiau)
Acked-by: Damien Lespiau <damien.lespiau@intel.com>
Signed-off-by: Mika Kuoppala <mika.kuoppala@intel.com>