sunxi: Imply fitImage support

Enable modern fitImage format on sunxi.
Signed-off-by: NMarek Vasut <marex@denx.de>
Cc: Maxime Ripard <maxime.ripard@bootlin.com>
Cc: Tom Rini <trini@konsulko.com>
Acked-by: NMaxime Ripard <maxime.ripard@bootlin.com>
Reviewed-by: NJagan Teki <jagan@openedev.com>

arch/arm/Kconfig

@@ -848,6 +848,7 @@ config ARCH_SUNXI
 	imply CMD_UBI if NAND
 	imply DISTRO_DEFAULTS
 	imply FAT_WRITE
+	imply FIT
 	imply OF_LIBFDT_OVERLAY
 	imply PRE_CONSOLE_BUFFER
 	imply SPL_GPIO_SUPPORT