arm64: defconfig: Enable LAN and BT support for RPi 3 B+

The Raspberry Pi 3 B+ has a Microchip LAN7515 (connect via USB) and
a Cypress CYW43455 (connect via UART). This patch enables the necessary
drivers.
Signed-off-by: Stefan Wahren <stefan.wahren@i2se.com>
Reviewed-by: Eric Anholt <eric@anholt.net>
Signed-off-by: Eric Anholt <eric@anholt.net>

arch/arm64/configs/defconfig

@@ -159,6 +159,7 @@ CONFIG_BT_LEDS=y
 # CONFIG_BT_DEBUGFS is not set
 CONFIG_BT_HCIUART=m
 CONFIG_BT_HCIUART_LL=y
+CONFIG_BT_HCIUART_BCM=y
 CONFIG_CFG80211=m
 CONFIG_MAC80211=m
 CONFIG_MAC80211_LEDS=y
@@ -239,6 +240,7 @@ CONFIG_ROCKCHIP_PHY=y
 CONFIG_USB_PEGASUS=m
 CONFIG_USB_RTL8150=m
 CONFIG_USB_RTL8152=m
+CONFIG_USB_LAN78XX=m
 CONFIG_USB_USBNET=m
 CONFIG_USB_NET_DM9601=m
 CONFIG_USB_NET_SR9800=m