Fix test_block_fp8.py test for MoE (vllm-project#13915)

Signed-off-by: mgoin <[email protected]>

Author: mgoin

tests/kernels/test_block_fp8.py

@@ -30,8 +30,8 @@
 N_moe = [4608]  # [128, 4608, 13824]
 K_moe = [7168]  # [256, 7168, 13824]
 BLOCK_SIZE = [[128, 128]]
-E = [256]  # [8, 24, 128, 256]
-TOP_KS = [1]  # [1, 2, 6]
+E = [8, 24]  # [8, 24, 128, 256]
+TOP_KS = [2]  # [1, 2, 6]
 OUT_DTYPES = [torch.bfloat16]  # [torch.float32, torch.half, torch.bfloat16]
 SEEDS = [0]