r8169: incorrect identifier for a 8168dp

Merge error.

See CFG_METHOD_8 (0x3c800000 + 0x00300000) since version 8.002.00
of Realtek's driver.
Signed-off-by: Francois Romieu <romieu@fr.zoreil.com>
Cc: Hayes <hayeswang@realtek.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

drivers/net/r8169.c

@@ -1316,7 +1316,7 @@ static void rtl8169_get_mac_version(struct rtl8169_private *tp,
 		{ 0x7c800000, 0x28000000,	RTL_GIGA_MAC_VER_26 },
 
 		/* 8168C family. */
-		{ 0x7cf00000, 0x3ca00000,	RTL_GIGA_MAC_VER_24 },
+		{ 0x7cf00000, 0x3cb00000,	RTL_GIGA_MAC_VER_24 },
 		{ 0x7cf00000, 0x3c900000,	RTL_GIGA_MAC_VER_23 },
 		{ 0x7cf00000, 0x3c800000,	RTL_GIGA_MAC_VER_18 },
 		{ 0x7c800000, 0x3c800000,	RTL_GIGA_MAC_VER_24 },