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/M52277EVB_stmicro_defconfig b/configs/M52277EVB_stmicro_defconfig
index d657f86..caade1d 100644
--- a/configs/M52277EVB_stmicro_defconfig
+++ b/configs/M52277EVB_stmicro_defconfig
@@ -2,6 +2,7 @@
CONFIG_SYS_TEXT_BASE=0x43E00000
CONFIG_TARGET_M52277EVB=y
CONFIG_SYS_EXTRA_OPTIONS="CF_SBF,SYS_STMICRO_BOOT"
+CONFIG_ENV_IS_IN_SPI_FLASH=y
CONFIG_BOOTDELAY=3
# CONFIG_DISPLAY_BOARDINFO is not set
CONFIG_CMD_SF=y