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/mainboard/google/rush_ryu/mainboard.c

@@ -35,8 +35,8 @@
 #include <vendorcode/google/chromeos/cros_vpd.h>
 #if IS_ENABLED(CONFIG_CHROMEOS)
 #include <vboot_struct.h>
-#include <vendorcode/google/chromeos/vboot2/misc.h>
-#include <vendorcode/google/chromeos/vboot_common.h>
+#include <vboot/misc.h>
+#include <vboot/vboot_common.h>
 #endif
 
 #include "gpio.h"