drivers: nand: bcmbca: Enable on BCM6846

The BCM6846 has the BRCMBCA NAND controller so enable
it.

Reviewed-by: Michael Trimarchi <michael@amarulasolutions.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
diff --git a/arch/arm/mach-bcmbca/bcm6846/Kconfig b/arch/arm/mach-bcmbca/bcm6846/Kconfig
index 229ab88..5ef9535 100644
--- a/arch/arm/mach-bcmbca/bcm6846/Kconfig
+++ b/arch/arm/mach-bcmbca/bcm6846/Kconfig
@@ -8,6 +8,9 @@
 config TARGET_BCM96846
 	bool "Broadcom 6846 Reference Board"
 	depends on ARCH_BCMBCA
+	imply MTD_RAW_NAND
+	imply NAND_BRCMNAND
+	imply NAND_BRCMNAND_BCMBCA
 
 config SYS_SOC
 	default "bcm6846"