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/controlcenterd_TRAILBLAZER_DEVELOP_defconfig b/configs/controlcenterd_TRAILBLAZER_DEVELOP_defconfig
index d71e6af..715282f 100644
--- a/configs/controlcenterd_TRAILBLAZER_DEVELOP_defconfig
+++ b/configs/controlcenterd_TRAILBLAZER_DEVELOP_defconfig
@@ -6,6 +6,7 @@
 CONFIG_BOOTDELAY=-2
 CONFIG_SYS_CONSOLE_IS_IN_ENV=y
 # CONFIG_DISPLAY_BOARDINFO is not set
+CONFIG_BOARD_EARLY_INIT_F=y
 # CONFIG_CMD_BOOTM is not set
 # CONFIG_CMD_IMLS is not set
 # CONFIG_CMD_FLASH is not set