baytrail: initialize chromeos EC if present in romstage

The EC needs to be initialized early in romstage. Therefore
perform the call after console has been initialized in order to
view any messages that the code may spit out.

BUG=chrome-os-partner:23387
BRANCH=None
TEST=Built and booted with recovery mode and EC in RW. Noted that
     system reboots the EC.

Change-Id: I35aa3ea4aa3dbd9bd806b6498e227f45ceebd7a1
Signed-off-by: Aaron Durbin <adurbin@chromium.org>
Reviewed-on: https://chromium-review.googlesource.com/174713
Reviewed-by: Duncan Laurie <dlaurie@chromium.org>
Reviewed-on: http://review.coreboot.org/4904
Tested-by: build bot (Jenkins)
Reviewed-by: Ronald G. Minnich <rminnich@gmail.com>

src/soc/intel/baytrail/romstage/romstage.c

@@ -25,6 +25,9 @@
 #include <console/console.h>
 #include <cbmem.h>
 #include <cpu/x86/mtrr.h>
+#if CONFIG_EC_GOOGLE_CHROMEEC
+#include <ec/google/chromeec/ec.h>
+#endif
 #include <ramstage_cache.h>
 #include <romstage_handoff.h>
 #include <timestamp.h>
@@ -124,6 +127,11 @@ void * asmlinkage romstage_main(unsigned long bist,
 
 	gfx_init();
 
+#if CONFIG_EC_GOOGLE_CHROMEEC
+	/* Ensure the EC is in the right mode for recovery */
+	google_chromeec_early_init();
+#endif
+
 	/* Call into mainboard. */
 	mainboard_romstage_entry(&rp);