ARM: at91: at91_dt_defconfig: enable RNDIS USB gadget

RNDIS UBS gadget was requested so enable it.

Signed-off-by: Cristian Birsan <cristian.birsan@microchip.com>
[cristian.birsan: adapt to v6.6.9]
Signed-off-by: Cristian Birsan <cristian.birsan@microchip.com>

Author: cristibirsan

arch/arm/configs/at91_dt_defconfig

@@ -231,8 +231,10 @@ CONFIG_USB_GADGET=y
 CONFIG_USB_ATMEL_USBA=m
 CONFIG_USB_CONFIGFS=m
 CONFIG_USB_CONFIGFS_ACM=y
+CONFIG_USB_CONFIGFS_RNDIS=y
 CONFIG_USB_CONFIGFS_MASS_STORAGE=y
 CONFIG_USB_ZERO=m
+CONFIG_USB_ETH=m
 CONFIG_USB_MASS_STORAGE=m
 CONFIG_USB_G_SERIAL=m
 CONFIG_MMC=y