Convert CONFIG_SYS_FLASH_EMPTY_INFO to Kconfig
This converts the following to Kconfig:
CONFIG_SYS_FLASH_EMPTY_INFO
Signed-off-by: Tom Rini <trini@konsulko.com>
diff --git a/configs/ls1021atwr_nor_defconfig b/configs/ls1021atwr_nor_defconfig
index 0410249..4ee9fe1 100644
--- a/configs/ls1021atwr_nor_defconfig
+++ b/configs/ls1021atwr_nor_defconfig
@@ -68,6 +68,7 @@
CONFIG_FLASH_CFI_DRIVER=y
CONFIG_CFI_FLASH_USE_WEAK_ACCESSORS=y
CONFIG_SYS_FLASH_USE_BUFFER_WRITE=y
+CONFIG_SYS_FLASH_EMPTY_INFO=y
CONFIG_SYS_FLASH_CFI=y
CONFIG_PHY_ATHEROS=y
CONFIG_DM_ETH=y