mtd: sunxi: Select the U-Boot location config option

We'll need that symbol so that the default offset are defined

Signed-off-by: Maxime Ripard <maxime.ripard@free-electrons.com>
Reviewed-by: Jagan Teki <jagan@openedev.com>
diff --git a/drivers/mtd/nand/Kconfig b/drivers/mtd/nand/Kconfig
index a2ea9b1..7b5449a 100644
--- a/drivers/mtd/nand/Kconfig
+++ b/drivers/mtd/nand/Kconfig
@@ -67,6 +67,7 @@
 	bool "Support for NAND on Allwinner SoCs"
 	depends on MACH_SUN4I || MACH_SUN5I || MACH_SUN7I
 	select SYS_NAND_SELF_INIT
+	select SYS_NAND_U_BOOT_LOCATIONS
 	---help---
 	Enable support for NAND. This option enables the standard and
 	SPL drivers.