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/spear320_defconfig b/configs/spear320_defconfig
index dd1798f..c206f38 100644
--- a/configs/spear320_defconfig
+++ b/configs/spear320_defconfig
@@ -2,6 +2,7 @@
CONFIG_TARGET_SPEAR320=y
CONFIG_IDENT_STRING="-SPEAr"
CONFIG_SYS_EXTRA_OPTIONS="SPEAR320"
+CONFIG_ENV_IS_IN_FLASH=y
CONFIG_BOOTDELAY=1
CONFIG_SYS_CONSOLE_INFO_QUIET=y
# CONFIG_DISPLAY_BOARDINFO is not set