Convert CONFIG_SYS_NAND_ONFI_DETECTION to Kconfig

This converts the following to Kconfig:
   CONFIG_SYS_NAND_ONFI_DETECTION

Signed-off-by: Tom Rini <trini@konsulko.com>
diff --git a/configs/xilinx_zynqmp_mini_nand_single_defconfig b/configs/xilinx_zynqmp_mini_nand_single_defconfig
index fe467f3..78ddb11 100644
--- a/configs/xilinx_zynqmp_mini_nand_single_defconfig
+++ b/configs/xilinx_zynqmp_mini_nand_single_defconfig
@@ -54,6 +54,7 @@
 CONFIG_DM_MTD=y
 CONFIG_MTD_RAW_NAND=y
 CONFIG_NAND_ARASAN=y
+CONFIG_SYS_NAND_ONFI_DETECTION=y
 CONFIG_ARM_DCC=y
 CONFIG_PANIC_HANG=y
 # CONFIG_GZIP is not set