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/vct_platinum_small_defconfig b/configs/vct_platinum_small_defconfig
index 2b49d4c..72f53e0 100644
--- a/configs/vct_platinum_small_defconfig
+++ b/configs/vct_platinum_small_defconfig
@@ -2,6 +2,7 @@
CONFIG_TARGET_VCT=y
CONFIG_VCT_PLATINUM=y
CONFIG_VCT_SMALL_IMAGE=y
+CONFIG_ENV_IS_IN_FLASH=y
CONFIG_BOOTDELAY=5
CONFIG_SYS_CONSOLE_INFO_QUIET=y
CONFIG_SYS_PROMPT="$ "