net: pcs: xpcs: use mii_c73_to_linkmode() helper

Convert xpcs clause 73 reading to use the newly introduced
mii_c73_to_linkmode() helper to translate the link partner
advertisement to an ethtool bitmap.
Reviewed-by: Andrew Lunn <andrew@lunn.ch>
Signed-off-by: Russell King (Oracle) <rmk+kernel@armlinux.org.uk>
Signed-off-by: Jakub Kicinski <kuba@kernel.org>

drivers/net/pcs/pcs-xpcs.c

@@ -529,18 +529,7 @@ static int xpcs_read_lpa_c73(struct dw_xpcs *xpcs,
 		lpa[i] = ret;
 	}
 
-	if (lpa[2] & DW_C73_2500KX)
-		phylink_set(state->lp_advertising, 2500baseX_Full);
-	if (lpa[1] & DW_C73_1000KX)
-		phylink_set(state->lp_advertising, 1000baseKX_Full);
-	if (lpa[1] & DW_C73_10000KX4)
-		phylink_set(state->lp_advertising, 10000baseKX4_Full);
-	if (lpa[1] & DW_C73_10000KR)
-		phylink_set(state->lp_advertising, 10000baseKR_Full);
-	if (lpa[0] & DW_C73_PAUSE)
-		phylink_set(state->lp_advertising, Pause);
-	if (lpa[0] & DW_C73_ASYM_PAUSE)
-		phylink_set(state->lp_advertising, Asym_Pause);
+	mii_c73_mod_linkmode(state->lp_advertising, lpa);
 
 	linkmode_and(state->lp_advertising, state->lp_advertising,
 		     state->advertising);