chromeos: Add missing headers

Builds with CHROMEOS fail due to missing includes.

Change-Id: I8c88bca8f8cc3247d3f3311777f794c4fdfee3c1
Signed-off-by: Patrick Georgi <pgeorgi@chromium.org>
Reviewed-on: http://review.coreboot.org/10029
Tested-by: build bot (Jenkins)
Reviewed-by: Aaron Durbin <adurbin@chromium.org>

src/soc/intel/broadwell/romstage/romstage.c

@@ -38,6 +38,7 @@
 #include <soc/reset.h>
 #include <soc/romstage.h>
 #include <soc/spi.h>
+#include <vendorcode/google/chromeos/chromeos.h>
 
 /* Entry from cache-as-ram.inc. */
 void * asmlinkage romstage_main(unsigned long bist,

src/vendorcode/google/chromeos/vboot.c

@@ -18,6 +18,7 @@
  */
 
 #include <types.h>
+#include <console/cbmem_console.h>
 #include <console/console.h>
 #include <arch/acpi.h>
 #include <tpm.h>

src/vendorcode/google/chromeos/vboot_common.c

@@ -20,6 +20,7 @@
 #include <boot/coreboot_tables.h>
 #include <cbfs.h>
 #include <cbmem.h>
+#include <console/cbmem_console.h>
 #include <console/console.h>
 #include <reset.h>
 #include <stddef.h>