Convert CONFIG_SYS_NAND_HW_ECC_OOBFIRST to Kconfig

This converts the following to Kconfig:
   CONFIG_SYS_NAND_HW_ECC_OOBFIRST

Signed-off-by: Tom Rini <trini@konsulko.com>
Reviewed-by: Simon Glass <sjg@chromium.org>
diff --git a/configs/da850evm_nand_defconfig b/configs/da850evm_nand_defconfig
index 30454a3..84563b2 100644
--- a/configs/da850evm_nand_defconfig
+++ b/configs/da850evm_nand_defconfig
@@ -87,6 +87,7 @@
 CONFIG_SYS_NAND_USE_FLASH_BBT=y
 CONFIG_NAND_DAVINCI=y
 CONFIG_SYS_NAND_4BIT_HW_ECC_OOBFIRST=y
+CONFIG_SYS_NAND_HW_ECC_OOBFIRST=y
 CONFIG_SYS_NAND_BLOCK_SIZE=0x20000
 CONFIG_SYS_NAND_PAGE_COUNT=0x40
 CONFIG_SYS_NAND_PAGE_SIZE=0x800