Re-add a line which got deleted in r473 by accident

Corresponding to flashrom svn r475.
Signed-off-by: Carl-Daniel Hailfinger <c-d.hailfinger.devel.2006@gmx.net>
Acked-by: Carl-Daniel Hailfinger <c-d.hailfinger.devel.2006@gmx.net>

flashrom.c

@@ -236,6 +236,8 @@ int erase_flash(struct flashchip *flash)
 		fprintf(stderr, "ERROR: flashrom has no erase function for this flash chip.\n");
 		return 1;
 	}
+	flash->erase(flash);
+
 	if (!flash->read) {
 		printf("FAILED!\n");
 		fprintf(stderr, "ERROR: flashrom has no read function for this flash chip.\n");