r8169: update the phy init for the 8168C

The values have been updated between version 8.002.00 and version
8.003.00 of Realtek's r8168 driver. This modification syncs the
8168C with version 8.003.00.
Signed-off-by: NFrancois Romieu <romieu@fr.zoreil.com>
Cc: Edward Hsu <edward_hsu@realtek.com.tw>

drivers/net/r8169.c

@@ -1260,6 +1260,8 @@ static void rtl8168cp_hw_phy_config(void __iomem *ioaddr)
 static void rtl8168c_hw_phy_config(void __iomem *ioaddr)
 {
 	struct phy_reg phy_reg_init[] = {
+		{ 0x1f, 0x0001 },
+		{ 0x12, 0x2300 },
 		{ 0x1f, 0x0002 },
 		{ 0x00, 0x88d4 },
 		{ 0x01, 0x82b1 },