support checkra1n clones being passed into -i

include/kerninfo.h

@@ -59,6 +59,7 @@
 #define palerain_option_setup_rootful        (1 << 2) /* create fakefs */
 #define palerain_option_setup_rootful_forced (1 << 3) /* create fakefs over an existing one */
 #define palerain_option_setup_partial_root   (1 << 4) /* fakefs creating should be partial */
+#define palerain_option_checkrain_is_clone   (1 << 5) /* supplied checkra1n is checkra1n clone */
 
 #ifdef DEV_BUILD
 #define palerain_option_test1               (1 << 29)