net: stmmac: Do not cut down 1G modes

Some glue logic drivers support 1G without having GMAC/GMAC4/XGMAC.

Let's allow this speed by default.
Reported-by: NOndrej Jirman <megi@xff.cz>
Tested-by: NOndrej Jirman <megi@xff.cz>
Fixes: 5b0d7d7d ("net: stmmac: Add the missing speeds that XGMAC supports")
Signed-off-by: NJose Abreu <joabreu@synopsys.com>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

drivers/net/ethernet/stmicro/stmmac/stmmac_main.c

@@ -814,20 +814,15 @@ static void stmmac_validate(struct phylink_config *config,
 	phylink_set(mac_supported, 10baseT_Full);
 	phylink_set(mac_supported, 100baseT_Half);
 	phylink_set(mac_supported, 100baseT_Full);
+	phylink_set(mac_supported, 1000baseT_Half);
+	phylink_set(mac_supported, 1000baseT_Full);
+	phylink_set(mac_supported, 1000baseKX_Full);
 
 	phylink_set(mac_supported, Autoneg);
 	phylink_set(mac_supported, Pause);
 	phylink_set(mac_supported, Asym_Pause);
 	phylink_set_port_modes(mac_supported);
 
-	if (priv->plat->has_gmac ||
-	    priv->plat->has_gmac4 ||
-	    priv->plat->has_xgmac) {
-		phylink_set(mac_supported, 1000baseT_Half);
-		phylink_set(mac_supported, 1000baseT_Full);
-		phylink_set(mac_supported, 1000baseKX_Full);
-	}
-
 	/* Cut down 1G if asked to */
 	if ((max_speed > 0) && (max_speed < 1000)) {
 		phylink_set(mask, 1000baseT_Full);