net: fec: Remove setting of RX software timestamp

The responsibility for reporting of RX software timestamp has moved to
the core layer (see __ethtool_get_ts_info()), remove usage from the
device drivers.
Reviewed-by: Carolina Jubran <cjubran@nvidia.com>
Reviewed-by: Rahul Rameshbabu <rrameshbabu@nvidia.com>
Signed-off-by: Gal Pressman <gal@nvidia.com>
Reviewed-by: Wei Fang <wei.fang@nxp.com>
Link: https://patch.msgid.link/20240901112803.212753-12-gal@nvidia.comSigned-off-by: Jakub Kicinski <kuba@kernel.org>

drivers/net/ethernet/freescale/fec_main.c

@@ -2775,15 +2775,11 @@ static int fec_enet_get_ts_info(struct net_device *ndev,
 	if (fep->bufdesc_ex) {
 
 		info->so_timestamping = SOF_TIMESTAMPING_TX_SOFTWARE |
-					SOF_TIMESTAMPING_RX_SOFTWARE |
-					SOF_TIMESTAMPING_SOFTWARE |
 					SOF_TIMESTAMPING_TX_HARDWARE |
 					SOF_TIMESTAMPING_RX_HARDWARE |
 					SOF_TIMESTAMPING_RAW_HARDWARE;
 		if (fep->ptp_clock)
 			info->phc_index = ptp_clock_index(fep->ptp_clock);
-		else
-			info->phc_index = -1;
 
 		info->tx_types = (1 << HWTSTAMP_TX_OFF) |
 				 (1 << HWTSTAMP_TX_ON);