Convert CONFIG_ENV_IS_IN_FLASH to Kconfig
This converts the following to Kconfig:
CONFIG_ENV_IS_IN_FLASH
Signed-off-by: Simon Glass <sjg@chromium.org>
diff --git a/configs/MPC8313ERDB_33_defconfig b/configs/MPC8313ERDB_33_defconfig
index 9876d36..b26731a 100644
--- a/configs/MPC8313ERDB_33_defconfig
+++ b/configs/MPC8313ERDB_33_defconfig
@@ -4,6 +4,7 @@
CONFIG_OF_BOARD_SETUP=y
CONFIG_OF_STDOUT_VIA_ALIAS=y
CONFIG_SYS_EXTRA_OPTIONS="SYS_33MHZ"
+CONFIG_ENV_IS_IN_FLASH=y
CONFIG_BOOTDELAY=6
CONFIG_HUSH_PARSER=y
CONFIG_CMD_I2C=y