Convert CONFIG_ENV_IS_IN_SPI_FLASH to Kconfig
This converts the following to Kconfig:
CONFIG_ENV_IS_IN_SPI_FLASH
Signed-off-by: Simon Glass <sjg@chromium.org>
diff --git a/configs/sh7752evb_defconfig b/configs/sh7752evb_defconfig
index 4e19243..1271ea0 100644
--- a/configs/sh7752evb_defconfig
+++ b/configs/sh7752evb_defconfig
@@ -1,6 +1,7 @@
CONFIG_SH=y
CONFIG_SH_32BIT=y
CONFIG_TARGET_SH7752EVB=y
+CONFIG_ENV_IS_IN_SPI_FLASH=y
CONFIG_BOOTDELAY=3
CONFIG_VERSION_VARIABLE=y
# CONFIG_CMD_BDI is not set