net: phy: nxp-c45-tja11xx: demote the "no PTP support" message to debug

The SJA1110 switch integrates these PHYs, and they do not have support
for timestamping. This message becomes quite overwhelming:

[   10.056596] NXP C45 TJA1103 spi1.0-base-t1:01: the phy does not support PTP
[   10.112625] NXP C45 TJA1103 spi1.0-base-t1:02: the phy does not support PTP
[   10.167461] NXP C45 TJA1103 spi1.0-base-t1:03: the phy does not support PTP
[   10.223510] NXP C45 TJA1103 spi1.0-base-t1:04: the phy does not support PTP
[   10.278239] NXP C45 TJA1103 spi1.0-base-t1:05: the phy does not support PTP
[   10.332663] NXP C45 TJA1103 spi1.0-base-t1:06: the phy does not support PTP
[   15.390828] NXP C45 TJA1103 spi1.2-base-t1:01: the phy does not support PTP
[   15.445224] NXP C45 TJA1103 spi1.2-base-t1:02: the phy does not support PTP
[   15.499673] NXP C45 TJA1103 spi1.2-base-t1:03: the phy does not support PTP
[   15.554074] NXP C45 TJA1103 spi1.2-base-t1:04: the phy does not support PTP
[   15.608516] NXP C45 TJA1103 spi1.2-base-t1:05: the phy does not support PTP
[   15.662996] NXP C45 TJA1103 spi1.2-base-t1:06: the phy does not support PTP

So reduce its log level to debug.

Cc: Richard Cochran <richardcochran@gmail.com>
Signed-off-by: Vladimir Oltean <vladimir.oltean@nxp.com>
Reviewed-by: Andrew Lunn <andrew@lunn.ch>
Reviewed-by: Russell King (Oracle) <rmk+kernel@armlinux.org.uk>
Signed-off-by: David S. Miller <davem@davemloft.net>

drivers/net/phy/nxp-c45-tja11xx.c

@@ -1090,7 +1090,7 @@ static int nxp_c45_probe(struct phy_device *phydev)
 				   VEND1_PORT_ABILITIES);
 	ptp_ability = !!(ptp_ability & PTP_ABILITY);
 	if (!ptp_ability) {
-		phydev_info(phydev, "the phy does not support PTP");
+		phydev_dbg(phydev, "the phy does not support PTP");
 		goto no_ptp_support;
 	}