x86: broadwell: kconfig: Imply platform specific drivers

Imply Broadwell-specific drivers in the platform Kconfig.

Signed-off-by: Bin Meng <bmeng.cn@gmail.com>
Reviewed-by: Simon Glass <sjg@chromium.org>
diff --git a/arch/x86/cpu/broadwell/Kconfig b/arch/x86/cpu/broadwell/Kconfig
index a9a461d..c56f90d 100644
--- a/arch/x86/cpu/broadwell/Kconfig
+++ b/arch/x86/cpu/broadwell/Kconfig
@@ -9,6 +9,12 @@
 	select ARCH_EARLY_INIT_R
 	imply HAVE_INTEL_ME
 	imply ENABLE_MRC_CACHE
+	imply ENV_IS_IN_SPI_FLASH
+	imply ICH_SPI
+	imply INTEL_BROADWELL_GPIO
+	imply SCSI
+	imply SPI_FLASH
+	imply VIDEO_BROADWELL_IGD
 
 if INTEL_BROADWELL