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/woodburn_sd_defconfig b/configs/woodburn_sd_defconfig
index 8d1a1f1..996247b 100644
--- a/configs/woodburn_sd_defconfig
+++ b/configs/woodburn_sd_defconfig
@@ -7,6 +7,7 @@
CONFIG_SPL_SERIAL_SUPPORT=y
CONFIG_SPL_LIBDISK_SUPPORT=y
CONFIG_SYS_EXTRA_OPTIONS="IMX_CONFIG=board/woodburn/imximage.cfg"
+CONFIG_ENV_IS_IN_FLASH=y
CONFIG_BOOTDELAY=3
# CONFIG_DISPLAY_BOARDINFO is not set
CONFIG_SPL=y