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/at91rm9200ek_ram_defconfig b/configs/at91rm9200ek_ram_defconfig
index 545b24a..1bb2003 100644
--- a/configs/at91rm9200ek_ram_defconfig
+++ b/configs/at91rm9200ek_ram_defconfig
@@ -2,6 +2,7 @@
CONFIG_ARCH_AT91=y
CONFIG_TARGET_AT91RM9200EK=y
CONFIG_SYS_EXTRA_OPTIONS="RAMBOOT"
+CONFIG_ENV_IS_IN_FLASH=y
CONFIG_BOOTDELAY=3
# CONFIG_SYS_STDIO_DEREGISTER is not set
# CONFIG_DISPLAY_CPUINFO is not set