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/T4240RDB_SDCARD_defconfig b/configs/T4240RDB_SDCARD_defconfig
index bd467ac..7399784 100644
--- a/configs/T4240RDB_SDCARD_defconfig
+++ b/configs/T4240RDB_SDCARD_defconfig
@@ -93,6 +93,7 @@
CONFIG_MTD_NOR_FLASH=y
CONFIG_FLASH_CFI_DRIVER=y
CONFIG_SYS_FLASH_USE_BUFFER_WRITE=y
+CONFIG_SYS_FLASH_EMPTY_INFO=y
CONFIG_SYS_FLASH_CFI=y
CONFIG_SYS_MAX_FLASH_BANKS=2
CONFIG_DM_SPI_FLASH=y