Disable SPL_MMC_SUPPORT if ROCKCHIP_SPL_BACK_TO_BROM is enabled.

Default SPL_MMC_SUPPORT to false when ROCKCHIP_SPL_BACK_TO_BROM is enabled.

Acked-by: Ziyuan Xu <xzy.xu@rock-chips.com>
Signed-off-by: Sandy Patterson <apatterson@sightlogix.com>
Acked-by: Simon Glass <sjg@chromium.org>

arch/arm/mach-rockchip/Kconfig

@@ -42,6 +42,9 @@ config ROCKCHIP_SPL_BACK_TO_BROM
           SPL will return to the boot rom, which will then load the U-Boot
           binary to keep going on.
 
+config SPL_MMC_SUPPORT
+	default y if !ROCKCHIP_SPL_BACK_TO_BROM
+
 source "arch/arm/mach-rockchip/rk3036/Kconfig"
 source "arch/arm/mach-rockchip/rk3288/Kconfig"
 source "arch/arm/mach-rockchip/rk3399/Kconfig"