net/mlx4_core: Fix sl_to_vl_change bit offset in flags2 dump

The index value in function dump_dev_cap_flags2() for outputting
"sl to vl mapping table change event support" needs to be
consistent with the value of the enumerated constant
MLX4_DEV_CAP_FLAG2_SL_TO_VL_CHANGE_EVENT defined in file
include/linux/mlx4_device.h

The change here restores that consistency.

Fixes: fd10ed8e ("IB/mlx4: Fix possible vl/sl field mismatch in LRH header in QP1 packets")
Reported-by: NMukesh Kacker <mukesh.kacker@oracle.com>
Signed-off-by: NJack Morgenstein <jackm@dev.mellanox.co.il>
Signed-off-by: NTariq Toukan <tariqt@mellanox.com>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

drivers/net/ethernet/mellanox/mlx4/fw.c

@@ -160,7 +160,7 @@ static void dump_dev_cap_flags2(struct mlx4_dev *dev, u64 flags)
 		[33] = "RoCEv2 support",
 		[34] = "DMFS Sniffer support (UC & MC)",
 		[35] = "QinQ VST mode support",
-		[36] = "sl to vl mapping table change event support"
+		[37] = "sl to vl mapping table change event support",
 	};
 	int i;