more work on reading second copy from tape, some cleanup

c64/kernal/assets/kernal_messages.s

@@ -1,4 +1,6 @@
-#if ROM_LAYOUT_STD || (ROM_LAYOUT_M65 && SEGMENT_KERNAL_0)
+// #LAYOUT# STD *        #TAKE
+// #LAYOUT# *   KERNAL_0 #TAKE
+// #LAYOUT# *   *        #IGNORE
 
 //
 // Messages to be prined out by Kernal
@@ -111,6 +113,3 @@ __msg_kernalfeatures:
 	.byte $80 + $0D // end of string mark + return
 
 #endif // CONFIG_SHOW_FEATURES
-
-
-#endif // ROM layout