x86: Introduce USE_EARLY_BOARD_INIT option

Introduce USE_EARLY_BOARD_INIT option and select it by the actual users.

Cc: George McCollister <george.mccollister@gmail.com>
Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Reviewed-by: Stefan Roese <sr@denx.de>
Reviewed-by: Aiden Park <aiden.park@intel.com>
Reviewed-by: Bin Meng <bmeng.cn@gmail.com>
diff --git a/board/google/chromebook_link/Kconfig b/board/google/chromebook_link/Kconfig
index 944716d..dd29ddf 100644
--- a/board/google/chromebook_link/Kconfig
+++ b/board/google/chromebook_link/Kconfig
@@ -19,6 +19,7 @@
 config BOARD_SPECIFIC_OPTIONS # dummy
 	def_bool y
 	select X86_RESET_VECTOR
+	select USE_EARLY_BOARD_INIT
 	select NORTHBRIDGE_INTEL_IVYBRIDGE
 	select HAVE_INTEL_ME
 	select BOARD_ROMSIZE_KB_8192