intel/test_decode: Allow gen8 to be infered from the batch filenames

Reviewed-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Signed-off-by: Damien Lespiau <damien.lespiau@intel.com>
diff --git a/intel/test_decode.c b/intel/test_decode.c
index 0fcdf3b..b710f34 100644
--- a/intel/test_decode.c
+++ b/intel/test_decode.c
@@ -146,6 +146,7 @@
 		{ "gen5", PCI_CHIP_ILD_G },
 		{ "gen6", PCI_CHIP_SANDYBRIDGE_GT2 },
 		{ "gen7", PCI_CHIP_IVYBRIDGE_GT2 },
+		{ "gen8", 0x1616 },
 		{ NULL, 0 },
 	};
 	int i;