Convert CONFIG_USE_ONENAND_BOARD_INIT to Kconfig

This converts the following to Kconfig:
   CONFIG_USE_ONENAND_BOARD_INIT

Signed-off-by: Tom Rini <trini@konsulko.com>
diff --git a/configs/s5p_goni_defconfig b/configs/s5p_goni_defconfig
index b5f3ae2..17bd842 100644
--- a/configs/s5p_goni_defconfig
+++ b/configs/s5p_goni_defconfig
@@ -32,6 +32,7 @@
 CONFIG_CMD_GPT=y
 CONFIG_CMD_MMC=y
 CONFIG_CMD_ONENAND=y
+CONFIG_USE_ONENAND_BOARD_INIT=y
 CONFIG_CMD_USB_MASS_STORAGE=y
 # CONFIG_CMD_SETEXPR is not set
 CONFIG_CMD_CACHE=y