lib/cbfs_core.c: Supply size of file as well in cbfs_get_file_content

Change-Id: I5b93e5321e470f19ad22ca2cfdb1ebf3b340b252
Signed-off-by: Vladimir Serbinenko <phcoder@gmail.com>
Reviewed-on: http://review.coreboot.org/4659
Reviewed-by: Patrick Georgi <patrick@georgi-clan.de>
Tested-by: build bot (Jenkins)

src/vendorcode/google/chromeos/vboot_loader.c

@@ -48,7 +48,7 @@ static void vboot_run_stub(struct vboot_context *context)
 
 	stage = cbfs_get_file_content(CBFS_DEFAULT_MEDIA,
 	                              CONFIG_CBFS_PREFIX "/vboot",
-	                              CBFS_TYPE_STAGE);
+	                              CBFS_TYPE_STAGE, NULL);
 
 	if (stage == NULL)
 		return;