sunxi: H6: Enable Ethernet on the Pine H64

Now that the EMAC driver supports the H6 SoC, we can enable the Ethernet
hardware on the Pine H64 board.

Signed-off-by: Samuel Holland <samuel@sholland.org>
Reviewed-by: Jagan Teki <jagan@amarulasolutions.com>
diff --git a/configs/pine_h64_defconfig b/configs/pine_h64_defconfig
index 8937c51..87871fd 100644
--- a/configs/pine_h64_defconfig
+++ b/configs/pine_h64_defconfig
@@ -10,5 +10,6 @@
 # CONFIG_PSCI_RESET is not set
 # CONFIG_SYS_MALLOC_CLEAR_ON_INIT is not set
 CONFIG_DEFAULT_DEVICE_TREE="sun50i-h6-pine-h64"
+CONFIG_SUN8I_EMAC=y
 CONFIG_USB_EHCI_HCD=y
 CONFIG_USB_OHCI_HCD=y