siena: only report generic filters in get_ts_info

CC: Solarflare linux maintainers <linux-net-drivers@solarflare.com>
CC: Shradha Shah <sshah@solarflare.com>
Signed-off-by: Jacob Keller <jacob.e.keller@intel.com>
Acked-by: Richard Cochran <richardcochran@gmail.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>

drivers/net/ethernet/sfc/siena.c

@@ -1042,9 +1042,5 @@ const struct efx_nic_type siena_a0_nic_type = {
 	.max_rx_ip_filters = FR_BZ_RX_FILTER_TBL0_ROWS,
 	.hwtstamp_filters = (1 << HWTSTAMP_FILTER_NONE |
 			     1 << HWTSTAMP_FILTER_PTP_V1_L4_EVENT |
-			     1 << HWTSTAMP_FILTER_PTP_V1_L4_SYNC |
-			     1 << HWTSTAMP_FILTER_PTP_V1_L4_DELAY_REQ |
-			     1 << HWTSTAMP_FILTER_PTP_V2_L4_EVENT |
-			     1 << HWTSTAMP_FILTER_PTP_V2_L4_SYNC |
-			     1 << HWTSTAMP_FILTER_PTP_V2_L4_DELAY_REQ),
+			     1 << HWTSTAMP_FILTER_PTP_V2_L4_EVENT),
 };