Convert CONFIG_BOARD_EARLY_INIT_F to Kconfig
This converts the following to Kconfig:
CONFIG_BOARD_EARLY_INIT_F
Signed-off-by: Simon Glass <sjg@chromium.org>
diff --git a/configs/rainier_defconfig b/configs/rainier_defconfig
index c76b7b9..955f593 100644
--- a/configs/rainier_defconfig
+++ b/configs/rainier_defconfig
@@ -8,6 +8,7 @@
CONFIG_SYS_CONSOLE_IS_IN_ENV=y
CONFIG_SYS_CONSOLE_INFO_QUIET=y
CONFIG_VERSION_VARIABLE=y
+CONFIG_BOARD_EARLY_INIT_F=y
CONFIG_HUSH_PARSER=y
CONFIG_CMD_ASKENV=y
CONFIG_CMD_GREPENV=y