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/ls1021aqds_ddr4_nor_lpuart_defconfig b/configs/ls1021aqds_ddr4_nor_lpuart_defconfig
index ed03812..00d6368 100644
--- a/configs/ls1021aqds_ddr4_nor_lpuart_defconfig
+++ b/configs/ls1021aqds_ddr4_nor_lpuart_defconfig
@@ -7,6 +7,7 @@
CONFIG_OF_BOARD_SETUP=y
CONFIG_OF_STDOUT_VIA_ALIAS=y
CONFIG_SYS_EXTRA_OPTIONS="LPUART"
+CONFIG_ENV_IS_IN_FLASH=y
CONFIG_BOOTDELAY=3
CONFIG_SILENT_CONSOLE=y
# CONFIG_CONSOLE_MUX is not set