ar71xx: Increase RXD/RDV to 2 on OM5P-AN

It was reported that OM5P-AN needs not only a delay setting of 1 for RXD/RDV
but 2. These was found when testing with a NetGear GS752TP POE switch with a
cable length of 50ft and 250ft.

Signed-off-by: Sven Eckelmann <sven@open-mesh.com>

SVN-Revision: 45524

target/linux/ar71xx/files/arch/mips/ath79/mach-om5p.c

@@ -186,9 +186,8 @@ static void __init om5p_an_setup(void)
 	ath79_init_mac(mac, art, 0x02);
 	ath79_register_wmac(art + OM5P_WMAC_CALDATA_OFFSET, mac);
 
-	ath79_setup_ar934x_eth_cfg(AR934X_ETH_CFG_RGMII_GMAC0 |
-				   AR934X_ETH_CFG_RXD_DELAY |
-				   AR934X_ETH_CFG_RDV_DELAY);
+	ath79_setup_ar934x_eth_cfg(AR934X_ETH_CFG_RGMII_GMAC0);
+	ath79_setup_ar934x_eth_rx_delay(2, 2);
 	ath79_register_mdio(0, 0x0);
 	ath79_register_mdio(1, 0x0);