vboot: Separate vboot from chromeos

VBOOT_VERIFY_FIRMWARE should be independent of CHROMEOS. This allows use
of verified boot library without having to stick to CHROMEOS.

BUG=chrome-os-partner:55639

Change-Id: Ia2c328712caedd230ab295b8a613e3c1ed1532d9
Signed-off-by: Furquan Shaikh <furquan@google.com>
Reviewed-on: https://review.coreboot.org/15867
Tested-by: build bot (Jenkins)
Reviewed-by: Duncan Laurie <dlaurie@chromium.org>

src/soc/intel/apollolake/lpc.c

@@ -25,7 +25,7 @@
 #include <soc/lpc.h>
 #include <soc/pci_ids.h>
 #include <soc/pm.h>
-#include <vendorcode/google/chromeos/chromeos.h>
+#include <vboot/vbnv.h>
 
 #include "chip.h"
 
@@ -60,7 +60,7 @@ static void rtc_init(void)
 	rtc_fail = !!(ps->gen_pmcon1 & RPS);
 	/* Ensure the date is set including century byte. */
 	cmos_check_update_date();
-	if (IS_ENABLED(CONFIG_CHROMEOS_VBNV_CMOS))
+	if (IS_ENABLED(CONFIG_VBOOT_VBNV_CMOS))
 		init_vbnv_cmos(rtc_fail);
 	else
 		cmos_init(rtc_fail);