Configs: Use the newly added PHY_RTL8211E_PINE64_GIGABIT_FIX

The Pine64+ uses a generic PHY driver, so flip it over to using the
Realtek PHY driver to actually apply the RTL8211e fix.

Signed-off-by: Kyle Evans <kevans@FreeBSD.org>
Acked-by: Joe Hershberger <joe.hershberger@ni.com>

configs/pine64_plus_defconfig

@@ -12,3 +12,5 @@ CONFIG_SPL=y
 CONFIG_SUN8I_EMAC=y
 CONFIG_USB_EHCI_HCD=y
 CONFIG_SYS_USB_EVENT_POLL_VIA_INT_QUEUE=y
+CONFIG_PHY_REALTEK=y
+CONFIG_RTL8211E_PINE64_GIGABIT_FIX=y